diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_communication_relay_client.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_communication_relay_client.py
index 1605aeb609e1..c4eb0fc83c7b 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_communication_relay_client.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_communication_relay_client.py
@@ -85,7 +85,7 @@ def from_connection_string(
     @distributed_trace
     def get_relay_configuration(
             self,
-            user, # type: CommunicationUserIdentifier
+            user=None, # type: CommunicationUserIdentifier
             **kwargs # type: Any
     ):
         # type: (Any) -> CommunicationRelayConfiguration
@@ -94,6 +94,9 @@ def get_relay_configuration(
         :return: CommunicationRelayConfiguration
         :rtype: ~azure.communication.networktraversal.CommunicationRelayConfiguration
         """
+        if user is None:
+            return self._network_traversal_service_client.communication_network_traversal.issue_relay_configuration(
+                None, **kwargs)
         return self._network_traversal_service_client.communication_network_traversal.issue_relay_configuration(
             user.properties['id'],
             **kwargs)
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_communication_network_traversal_client.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_communication_network_traversal_client.py
index 23ab5f90b2a3..232315d13b62 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_communication_network_traversal_client.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_communication_network_traversal_client.py
@@ -6,28 +6,30 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
+from copy import deepcopy
 from typing import TYPE_CHECKING
 
 from azure.core import PipelineClient
 from msrest import Deserializer, Serializer
 
+from . import models
+from ._configuration import CommunicationNetworkTraversalClientConfiguration
+from .operations import CommunicationNetworkTraversalOperations
+
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
     from typing import Any
 
-    from azure.core.pipeline.transport import HttpRequest, HttpResponse
-
-from ._configuration import CommunicationNetworkTraversalClientConfiguration
-from .operations import CommunicationNetworkTraversalOperations
-from . import models
-
+    from azure.core.rest import HttpRequest, HttpResponse
 
 class CommunicationNetworkTraversalClient(object):
     """Azure Communication Networking Service.
 
     :ivar communication_network_traversal: CommunicationNetworkTraversalOperations operations
-    :vartype communication_network_traversal: azure.communication.networktraversal.operations.CommunicationNetworkTraversalOperations
-    :param endpoint: The communication resource, for example https://my-resource.communication.azure.com.
+    :vartype communication_network_traversal:
+     azure.communication.networktraversal.operations.CommunicationNetworkTraversalOperations
+    :param endpoint: The communication resource, for example
+     https://my-resource.communication.azure.com.
     :type endpoint: str
     """
 
@@ -37,35 +39,47 @@ def __init__(
         **kwargs  # type: Any
     ):
         # type: (...) -> None
-        base_url = '{endpoint}'
+        _base_url = '{endpoint}'
         self._config = CommunicationNetworkTraversalClientConfiguration(endpoint, **kwargs)
-        self._client = PipelineClient(base_url=base_url, config=self._config, **kwargs)
+        self._client = PipelineClient(base_url=_base_url, config=self._config, **kwargs)
 
         client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
         self._serialize = Serializer(client_models)
-        self._serialize.client_side_validation = False
         self._deserialize = Deserializer(client_models)
+        self._serialize.client_side_validation = False
+        self.communication_network_traversal = CommunicationNetworkTraversalOperations(self._client, self._config, self._serialize, self._deserialize)
 
-        self.communication_network_traversal = CommunicationNetworkTraversalOperations(
-            self._client, self._config, self._serialize, self._deserialize)
 
-    def _send_request(self, http_request, **kwargs):
-        # type: (HttpRequest, Any) -> HttpResponse
+    def _send_request(
+        self,
+        request,  # type: HttpRequest
+        **kwargs  # type: Any
+    ):
+        # type: (...) -> HttpResponse
         """Runs the network request through the client's chained policies.
 
-        :param http_request: The network request you want to make. Required.
-        :type http_request: ~azure.core.pipeline.transport.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to True.
+        >>> from azure.core.rest import HttpRequest
+        >>> request = HttpRequest("GET", "https://www.example.org/")
+        <HttpRequest [GET], url: 'https://www.example.org/'>
+        >>> response = client._send_request(request)
+        <HttpResponse: 200 OK>
+
+        For more information on this code flow, see https://aka.ms/azsdk/python/protocol/quickstart
+
+        :param request: The network request you want to make. Required.
+        :type request: ~azure.core.rest.HttpRequest
+        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
         :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.pipeline.transport.HttpResponse
+        :rtype: ~azure.core.rest.HttpResponse
         """
+
+        request_copy = deepcopy(request)
         path_format_arguments = {
-            'endpoint': self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
+            "endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
         }
-        http_request.url = self._client.format_url(http_request.url, **path_format_arguments)
-        stream = kwargs.pop("stream", True)
-        pipeline_response = self._client._pipeline.run(http_request, stream=stream, **kwargs)
-        return pipeline_response.http_response
+
+        request_copy.url = self._client.format_url(request_copy.url, **path_format_arguments)
+        return self._client.send_request(request_copy, **kwargs)
 
     def close(self):
         # type: () -> None
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_vendor.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_vendor.py
new file mode 100644
index 000000000000..9a223d15524c
--- /dev/null
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/_vendor.py
@@ -0,0 +1,15 @@
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is regenerated.
+# --------------------------------------------------------------------------
+
+from azure.core.pipeline.transport import HttpRequest
+
+def _convert_request(request, files=None):
+    data = request.content if not files else None
+    request = HttpRequest(method=request.method, url=request.url, headers=request.headers, data=data)
+    if files:
+        request.set_formdata_body(files)
+    return request
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/_communication_network_traversal_client.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/_communication_network_traversal_client.py
index f9ded0d8d97f..cb1e98300c1d 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/_communication_network_traversal_client.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/_communication_network_traversal_client.py
@@ -6,23 +6,25 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-from typing import Any
+from copy import deepcopy
+from typing import Any, Awaitable
 
 from azure.core import AsyncPipelineClient
-from azure.core.pipeline.transport import AsyncHttpResponse, HttpRequest
+from azure.core.rest import AsyncHttpResponse, HttpRequest
 from msrest import Deserializer, Serializer
 
+from .. import models
 from ._configuration import CommunicationNetworkTraversalClientConfiguration
 from .operations import CommunicationNetworkTraversalOperations
-from .. import models
-
 
-class CommunicationNetworkTraversalClient(object):
+class CommunicationNetworkTraversalClient:
     """Azure Communication Networking Service.
 
     :ivar communication_network_traversal: CommunicationNetworkTraversalOperations operations
-    :vartype communication_network_traversal: azure.communication.networktraversal.aio.operations.CommunicationNetworkTraversalOperations
-    :param endpoint: The communication resource, for example https://my-resource.communication.azure.com.
+    :vartype communication_network_traversal:
+     azure.communication.networktraversal.aio.operations.CommunicationNetworkTraversalOperations
+    :param endpoint: The communication resource, for example
+     https://my-resource.communication.azure.com.
     :type endpoint: str
     """
 
@@ -31,34 +33,46 @@ def __init__(
         endpoint: str,
         **kwargs: Any
     ) -> None:
-        base_url = '{endpoint}'
+        _base_url = '{endpoint}'
         self._config = CommunicationNetworkTraversalClientConfiguration(endpoint, **kwargs)
-        self._client = AsyncPipelineClient(base_url=base_url, config=self._config, **kwargs)
+        self._client = AsyncPipelineClient(base_url=_base_url, config=self._config, **kwargs)
 
         client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
         self._serialize = Serializer(client_models)
-        self._serialize.client_side_validation = False
         self._deserialize = Deserializer(client_models)
+        self._serialize.client_side_validation = False
+        self.communication_network_traversal = CommunicationNetworkTraversalOperations(self._client, self._config, self._serialize, self._deserialize)
 
-        self.communication_network_traversal = CommunicationNetworkTraversalOperations(
-            self._client, self._config, self._serialize, self._deserialize)
 
-    async def _send_request(self, http_request: HttpRequest, **kwargs: Any) -> AsyncHttpResponse:
+    def _send_request(
+        self,
+        request: HttpRequest,
+        **kwargs: Any
+    ) -> Awaitable[AsyncHttpResponse]:
         """Runs the network request through the client's chained policies.
 
-        :param http_request: The network request you want to make. Required.
-        :type http_request: ~azure.core.pipeline.transport.HttpRequest
-        :keyword bool stream: Whether the response payload will be streamed. Defaults to True.
+        >>> from azure.core.rest import HttpRequest
+        >>> request = HttpRequest("GET", "https://www.example.org/")
+        <HttpRequest [GET], url: 'https://www.example.org/'>
+        >>> response = await client._send_request(request)
+        <AsyncHttpResponse: 200 OK>
+
+        For more information on this code flow, see https://aka.ms/azsdk/python/protocol/quickstart
+
+        :param request: The network request you want to make. Required.
+        :type request: ~azure.core.rest.HttpRequest
+        :keyword bool stream: Whether the response payload will be streamed. Defaults to False.
         :return: The response of your network call. Does not do error handling on your response.
-        :rtype: ~azure.core.pipeline.transport.AsyncHttpResponse
+        :rtype: ~azure.core.rest.AsyncHttpResponse
         """
+
+        request_copy = deepcopy(request)
         path_format_arguments = {
-            'endpoint': self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
+            "endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
         }
-        http_request.url = self._client.format_url(http_request.url, **path_format_arguments)
-        stream = kwargs.pop("stream", True)
-        pipeline_response = await self._client._pipeline.run(http_request, stream=stream, **kwargs)
-        return pipeline_response.http_response
+
+        request_copy.url = self._client.format_url(request_copy.url, **path_format_arguments)
+        return self._client.send_request(request_copy, **kwargs)
 
     async def close(self) -> None:
         await self._client.close()
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/operations/_communication_network_traversal_operations.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/operations/_communication_network_traversal_operations.py
index b147205b3bd0..c093ef0e412f 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/operations/_communication_network_traversal_operations.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/aio/operations/_communication_network_traversal_operations.py
@@ -5,14 +5,19 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
+import functools
 from typing import Any, Callable, Dict, Generic, Optional, TypeVar
 import warnings
 
 from azure.core.exceptions import ClientAuthenticationError, HttpResponseError, ResourceExistsError, ResourceNotFoundError, map_error
 from azure.core.pipeline import PipelineResponse
-from azure.core.pipeline.transport import AsyncHttpResponse, HttpRequest
+from azure.core.pipeline.transport import AsyncHttpResponse
+from azure.core.rest import HttpRequest
+from azure.core.tracing.decorator_async import distributed_trace_async
 
 from ... import models as _models
+from ..._vendor import _convert_request
+from ...operations._communication_network_traversal_operations import build_issue_relay_configuration_request
 
 T = TypeVar('T')
 ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
@@ -39,9 +44,10 @@ def __init__(self, client, config, serializer, deserializer) -> None:
         self._deserialize = deserializer
         self._config = config
 
+    @distributed_trace_async
     async def issue_relay_configuration(
         self,
-        id: str,
+        id: Optional[str] = None,
         **kwargs: Any
     ) -> "_models.CommunicationRelayConfiguration":
         """Issue a configuration for an STUN/TURN server for an existing identity.
@@ -61,37 +67,31 @@ async def issue_relay_configuration(
         }
         error_map.update(kwargs.pop('error_map', {}))
 
-        _body = _models.CommunicationRelayConfigurationRequest(id=id)
-        api_version = "2021-06-21-preview"
-        content_type = kwargs.pop("content_type", "application/json")
-        accept = "application/json"
+        content_type = kwargs.pop('content_type', "application/json")  # type: Optional[str]
 
-        # Construct URL
-        url = self.issue_relay_configuration.metadata['url']  # type: ignore
+        _body = _models.CommunicationRelayConfigurationRequest(id=id)
+        if _body is not None:
+            json = self._serialize.body(_body, 'CommunicationRelayConfigurationRequest')
+        else:
+            json = None
+
+        request = build_issue_relay_configuration_request(
+            content_type=content_type,
+            json=json,
+            template_url=self.issue_relay_configuration.metadata['url'],
+        )
+        request = _convert_request(request)
         path_format_arguments = {
-            'endpoint': self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
+            "endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
         }
-        url = self._client.format_url(url, **path_format_arguments)
-
-        # Construct parameters
-        query_parameters = {}  # type: Dict[str, Any]
-        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
-
-        # Construct headers
-        header_parameters = {}  # type: Dict[str, Any]
-        header_parameters['Content-Type'] = self._serialize.header("content_type", content_type, 'str')
-        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
-
-        body_content_kwargs = {}  # type: Dict[str, Any]
-        body_content = self._serialize.body(_body, 'CommunicationRelayConfigurationRequest')
-        body_content_kwargs['content'] = body_content
-        request = self._client.post(url, query_parameters, header_parameters, **body_content_kwargs)
-        pipeline_response = await self._client._pipeline.run(request, stream=False, **kwargs)
+        request.url = self._client.format_url(request.url, **path_format_arguments)
+
+        pipeline_response = await self._client.send_request(request, stream=False, _return_pipeline_response=True, **kwargs)
         response = pipeline_response.http_response
 
         if response.status_code not in [200]:
             map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.CommunicationErrorResponse, response)
+            error = self._deserialize.failsafe_deserialize(_models.CommunicationErrorResponse, pipeline_response)
             raise HttpResponseError(response=response, model=error)
 
         deserialized = self._deserialize('CommunicationRelayConfiguration', pipeline_response)
@@ -100,4 +100,6 @@ async def issue_relay_configuration(
             return cls(pipeline_response, deserialized, {})
 
         return deserialized
+
     issue_relay_configuration.metadata = {'url': '/networktraversal/:issueRelayConfiguration'}  # type: ignore
+
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models.py
index 73a3bc58e2c9..fed3c7405e7a 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models.py
@@ -17,10 +17,10 @@ class CommunicationError(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param code: Required. The error code.
-    :type code: str
-    :param message: Required. The error message.
-    :type message: str
+    :ivar code: Required. The error code.
+    :vartype code: str
+    :ivar message: Required. The error message.
+    :vartype message: str
     :ivar target: The error target.
     :vartype target: str
     :ivar details: Further details about specific errors that led to this error.
@@ -49,6 +49,12 @@ def __init__(
         self,
         **kwargs
     ):
+        """
+        :keyword code: Required. The error code.
+        :paramtype code: str
+        :keyword message: Required. The error message.
+        :paramtype message: str
+        """
         super(CommunicationError, self).__init__(**kwargs)
         self.code = kwargs['code']
         self.message = kwargs['message']
@@ -62,8 +68,8 @@ class CommunicationErrorResponse(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param error: Required. The Communication Services error.
-    :type error: ~azure.communication.networktraversal.models.CommunicationError
+    :ivar error: Required. The Communication Services error.
+    :vartype error: ~azure.communication.networktraversal.models.CommunicationError
     """
 
     _validation = {
@@ -78,6 +84,10 @@ def __init__(
         self,
         **kwargs
     ):
+        """
+        :keyword error: Required. The Communication Services error.
+        :paramtype error: ~azure.communication.networktraversal.models.CommunicationError
+        """
         super(CommunicationErrorResponse, self).__init__(**kwargs)
         self.error = kwargs['error']
 
@@ -87,12 +97,12 @@ class CommunicationIceServer(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param urls: Required. List of STUN/TURN server URLs.
-    :type urls: list[str]
-    :param username: Required. User account name which uniquely identifies the credentials.
-    :type username: str
-    :param credential: Required. Credential for the server.
-    :type credential: str
+    :ivar urls: Required. List of STUN/TURN server URLs.
+    :vartype urls: list[str]
+    :ivar username: Required. User account name which uniquely identifies the credentials.
+    :vartype username: str
+    :ivar credential: Required. Credential for the server.
+    :vartype credential: str
     """
 
     _validation = {
@@ -111,6 +121,14 @@ def __init__(
         self,
         **kwargs
     ):
+        """
+        :keyword urls: Required. List of STUN/TURN server URLs.
+        :paramtype urls: list[str]
+        :keyword username: Required. User account name which uniquely identifies the credentials.
+        :paramtype username: str
+        :keyword credential: Required. Credential for the server.
+        :paramtype credential: str
+        """
         super(CommunicationIceServer, self).__init__(**kwargs)
         self.urls = kwargs['urls']
         self.username = kwargs['username']
@@ -122,12 +140,12 @@ class CommunicationRelayConfiguration(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param expires_on: Required. The date for which the username and credentials are not longer
+    :ivar expires_on: Required. The date for which the username and credentials are not longer
      valid.
-    :type expires_on: ~datetime.datetime
-    :param ice_servers: Required. An array representing the credentials and the STUN/TURN server
+    :vartype expires_on: ~datetime.datetime
+    :ivar ice_servers: Required. An array representing the credentials and the STUN/TURN server
      URLs for use in ICE negotiations.
-    :type ice_servers: list[~azure.communication.networktraversal.models.CommunicationIceServer]
+    :vartype ice_servers: list[~azure.communication.networktraversal.models.CommunicationIceServer]
     """
 
     _validation = {
@@ -144,6 +162,15 @@ def __init__(
         self,
         **kwargs
     ):
+        """
+        :keyword expires_on: Required. The date for which the username and credentials are not longer
+         valid.
+        :paramtype expires_on: ~datetime.datetime
+        :keyword ice_servers: Required. An array representing the credentials and the STUN/TURN server
+         URLs for use in ICE negotiations.
+        :paramtype ice_servers:
+         list[~azure.communication.networktraversal.models.CommunicationIceServer]
+        """
         super(CommunicationRelayConfiguration, self).__init__(**kwargs)
         self.expires_on = kwargs['expires_on']
         self.ice_servers = kwargs['ice_servers']
@@ -152,16 +179,10 @@ def __init__(
 class CommunicationRelayConfigurationRequest(msrest.serialization.Model):
     """Request for a CommunicationRelayConfiguration.
 
-    All required parameters must be populated in order to send to Azure.
-
-    :param id: Required. An existing ACS identity.
-    :type id: str
+    :ivar id: An existing ACS identity.
+    :vartype id: str
     """
 
-    _validation = {
-        'id': {'required': True},
-    }
-
     _attribute_map = {
         'id': {'key': 'id', 'type': 'str'},
     }
@@ -170,5 +191,9 @@ def __init__(
         self,
         **kwargs
     ):
+        """
+        :keyword id: An existing ACS identity.
+        :paramtype id: str
+        """
         super(CommunicationRelayConfigurationRequest, self).__init__(**kwargs)
-        self.id = kwargs['id']
+        self.id = kwargs.get('id', None)
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models_py3.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models_py3.py
index e8feb05df2f2..75c2169ac8ec 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models_py3.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/models/_models_py3.py
@@ -7,7 +7,7 @@
 # --------------------------------------------------------------------------
 
 import datetime
-from typing import List
+from typing import List, Optional
 
 from azure.core.exceptions import HttpResponseError
 import msrest.serialization
@@ -20,10 +20,10 @@ class CommunicationError(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param code: Required. The error code.
-    :type code: str
-    :param message: Required. The error message.
-    :type message: str
+    :ivar code: Required. The error code.
+    :vartype code: str
+    :ivar message: Required. The error message.
+    :vartype message: str
     :ivar target: The error target.
     :vartype target: str
     :ivar details: Further details about specific errors that led to this error.
@@ -55,6 +55,12 @@ def __init__(
         message: str,
         **kwargs
     ):
+        """
+        :keyword code: Required. The error code.
+        :paramtype code: str
+        :keyword message: Required. The error message.
+        :paramtype message: str
+        """
         super(CommunicationError, self).__init__(**kwargs)
         self.code = code
         self.message = message
@@ -68,8 +74,8 @@ class CommunicationErrorResponse(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param error: Required. The Communication Services error.
-    :type error: ~azure.communication.networktraversal.models.CommunicationError
+    :ivar error: Required. The Communication Services error.
+    :vartype error: ~azure.communication.networktraversal.models.CommunicationError
     """
 
     _validation = {
@@ -86,6 +92,10 @@ def __init__(
         error: "CommunicationError",
         **kwargs
     ):
+        """
+        :keyword error: Required. The Communication Services error.
+        :paramtype error: ~azure.communication.networktraversal.models.CommunicationError
+        """
         super(CommunicationErrorResponse, self).__init__(**kwargs)
         self.error = error
 
@@ -95,12 +105,12 @@ class CommunicationIceServer(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param urls: Required. List of STUN/TURN server URLs.
-    :type urls: list[str]
-    :param username: Required. User account name which uniquely identifies the credentials.
-    :type username: str
-    :param credential: Required. Credential for the server.
-    :type credential: str
+    :ivar urls: Required. List of STUN/TURN server URLs.
+    :vartype urls: list[str]
+    :ivar username: Required. User account name which uniquely identifies the credentials.
+    :vartype username: str
+    :ivar credential: Required. Credential for the server.
+    :vartype credential: str
     """
 
     _validation = {
@@ -123,6 +133,14 @@ def __init__(
         credential: str,
         **kwargs
     ):
+        """
+        :keyword urls: Required. List of STUN/TURN server URLs.
+        :paramtype urls: list[str]
+        :keyword username: Required. User account name which uniquely identifies the credentials.
+        :paramtype username: str
+        :keyword credential: Required. Credential for the server.
+        :paramtype credential: str
+        """
         super(CommunicationIceServer, self).__init__(**kwargs)
         self.urls = urls
         self.username = username
@@ -134,12 +152,12 @@ class CommunicationRelayConfiguration(msrest.serialization.Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param expires_on: Required. The date for which the username and credentials are not longer
+    :ivar expires_on: Required. The date for which the username and credentials are not longer
      valid.
-    :type expires_on: ~datetime.datetime
-    :param ice_servers: Required. An array representing the credentials and the STUN/TURN server
+    :vartype expires_on: ~datetime.datetime
+    :ivar ice_servers: Required. An array representing the credentials and the STUN/TURN server
      URLs for use in ICE negotiations.
-    :type ice_servers: list[~azure.communication.networktraversal.models.CommunicationIceServer]
+    :vartype ice_servers: list[~azure.communication.networktraversal.models.CommunicationIceServer]
     """
 
     _validation = {
@@ -159,6 +177,15 @@ def __init__(
         ice_servers: List["CommunicationIceServer"],
         **kwargs
     ):
+        """
+        :keyword expires_on: Required. The date for which the username and credentials are not longer
+         valid.
+        :paramtype expires_on: ~datetime.datetime
+        :keyword ice_servers: Required. An array representing the credentials and the STUN/TURN server
+         URLs for use in ICE negotiations.
+        :paramtype ice_servers:
+         list[~azure.communication.networktraversal.models.CommunicationIceServer]
+        """
         super(CommunicationRelayConfiguration, self).__init__(**kwargs)
         self.expires_on = expires_on
         self.ice_servers = ice_servers
@@ -167,16 +194,10 @@ def __init__(
 class CommunicationRelayConfigurationRequest(msrest.serialization.Model):
     """Request for a CommunicationRelayConfiguration.
 
-    All required parameters must be populated in order to send to Azure.
-
-    :param id: Required. An existing ACS identity.
-    :type id: str
+    :ivar id: An existing ACS identity.
+    :vartype id: str
     """
 
-    _validation = {
-        'id': {'required': True},
-    }
-
     _attribute_map = {
         'id': {'key': 'id', 'type': 'str'},
     }
@@ -184,8 +205,12 @@ class CommunicationRelayConfigurationRequest(msrest.serialization.Model):
     def __init__(
         self,
         *,
-        id: str,
+        id: Optional[str] = None,
         **kwargs
     ):
+        """
+        :keyword id: An existing ACS identity.
+        :paramtype id: str
+        """
         super(CommunicationRelayConfigurationRequest, self).__init__(**kwargs)
         self.id = id
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/operations/_communication_network_traversal_operations.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/operations/_communication_network_traversal_operations.py
index ce068eea96b6..1f20e8968ecf 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/operations/_communication_network_traversal_operations.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/_generated/operations/_communication_network_traversal_operations.py
@@ -5,14 +5,19 @@
 # Code generated by Microsoft (R) AutoRest Code Generator.
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
+import functools
 from typing import TYPE_CHECKING
 import warnings
 
 from azure.core.exceptions import ClientAuthenticationError, HttpResponseError, ResourceExistsError, ResourceNotFoundError, map_error
 from azure.core.pipeline import PipelineResponse
-from azure.core.pipeline.transport import HttpRequest, HttpResponse
+from azure.core.pipeline.transport import HttpResponse
+from azure.core.rest import HttpRequest
+from azure.core.tracing.decorator import distributed_trace
+from msrest import Serializer
 
 from .. import models as _models
+from .._vendor import _convert_request
 
 if TYPE_CHECKING:
     # pylint: disable=unused-import,ungrouped-imports
@@ -21,6 +26,39 @@
     T = TypeVar('T')
     ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]
 
+_SERIALIZER = Serializer()
+# fmt: off
+
+def build_issue_relay_configuration_request(
+    **kwargs  # type: Any
+):
+    # type: (...) -> HttpRequest
+    content_type = kwargs.pop('content_type', None)  # type: Optional[str]
+
+    api_version = "2021-06-21-preview"
+    accept = "application/json"
+    # Construct URL
+    url = kwargs.pop("template_url", '/networktraversal/:issueRelayConfiguration')
+
+    # Construct parameters
+    query_parameters = kwargs.pop("params", {})  # type: Dict[str, Any]
+    query_parameters['api-version'] = _SERIALIZER.query("api_version", api_version, 'str')
+
+    # Construct headers
+    header_parameters = kwargs.pop("headers", {})  # type: Dict[str, Any]
+    if content_type is not None:
+        header_parameters['Content-Type'] = _SERIALIZER.header("content_type", content_type, 'str')
+    header_parameters['Accept'] = _SERIALIZER.header("accept", accept, 'str')
+
+    return HttpRequest(
+        method="POST",
+        url=url,
+        params=query_parameters,
+        headers=header_parameters,
+        **kwargs
+    )
+
+# fmt: on
 class CommunicationNetworkTraversalOperations(object):
     """CommunicationNetworkTraversalOperations operations.
 
@@ -43,9 +81,10 @@ def __init__(self, client, config, serializer, deserializer):
         self._deserialize = deserializer
         self._config = config
 
+    @distributed_trace
     def issue_relay_configuration(
         self,
-        id,  # type: str
+        id=None,  # type: Optional[str]
         **kwargs  # type: Any
     ):
         # type: (...) -> "_models.CommunicationRelayConfiguration"
@@ -66,37 +105,31 @@ def issue_relay_configuration(
         }
         error_map.update(kwargs.pop('error_map', {}))
 
-        _body = _models.CommunicationRelayConfigurationRequest(id=id)
-        api_version = "2021-06-21-preview"
-        content_type = kwargs.pop("content_type", "application/json")
-        accept = "application/json"
+        content_type = kwargs.pop('content_type', "application/json")  # type: Optional[str]
 
-        # Construct URL
-        url = self.issue_relay_configuration.metadata['url']  # type: ignore
+        _body = _models.CommunicationRelayConfigurationRequest(id=id)
+        if _body is not None:
+            json = self._serialize.body(_body, 'CommunicationRelayConfigurationRequest')
+        else:
+            json = None
+
+        request = build_issue_relay_configuration_request(
+            content_type=content_type,
+            json=json,
+            template_url=self.issue_relay_configuration.metadata['url'],
+        )
+        request = _convert_request(request)
         path_format_arguments = {
-            'endpoint': self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
+            "endpoint": self._serialize.url("self._config.endpoint", self._config.endpoint, 'str', skip_quote=True),
         }
-        url = self._client.format_url(url, **path_format_arguments)
-
-        # Construct parameters
-        query_parameters = {}  # type: Dict[str, Any]
-        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
-
-        # Construct headers
-        header_parameters = {}  # type: Dict[str, Any]
-        header_parameters['Content-Type'] = self._serialize.header("content_type", content_type, 'str')
-        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
-
-        body_content_kwargs = {}  # type: Dict[str, Any]
-        body_content = self._serialize.body(_body, 'CommunicationRelayConfigurationRequest')
-        body_content_kwargs['content'] = body_content
-        request = self._client.post(url, query_parameters, header_parameters, **body_content_kwargs)
-        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
+        request.url = self._client.format_url(request.url, **path_format_arguments)
+
+        pipeline_response = self._client.send_request(request, stream=False, _return_pipeline_response=True, **kwargs)
         response = pipeline_response.http_response
 
         if response.status_code not in [200]:
             map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.CommunicationErrorResponse, response)
+            error = self._deserialize.failsafe_deserialize(_models.CommunicationErrorResponse, pipeline_response)
             raise HttpResponseError(response=response, model=error)
 
         deserialized = self._deserialize('CommunicationRelayConfiguration', pipeline_response)
@@ -105,4 +138,6 @@ def issue_relay_configuration(
             return cls(pipeline_response, deserialized, {})
 
         return deserialized
+
     issue_relay_configuration.metadata = {'url': '/networktraversal/:issueRelayConfiguration'}  # type: ignore
+
diff --git a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/aio/_communication_relay_client_async.py b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/aio/_communication_relay_client_async.py
index 3a3939eb7f2d..f04ea0c60c23 100644
--- a/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/aio/_communication_relay_client_async.py
+++ b/sdk/communication/azure-communication-networktraversal/azure/communication/networktraversal/aio/_communication_relay_client_async.py
@@ -83,7 +83,7 @@ def from_connection_string(
     @distributed_trace_async
     async def get_relay_configuration(
             self,
-            user: 'CommunicationUserIdentifier',
+            user: 'CommunicationUserIdentifier' = None,
             **kwargs # type: Any
         ) -> 'CommunicationRelayConfiguration':
         """get a Communication Relay configuration.
@@ -91,6 +91,9 @@ async def get_relay_configuration(
         :return: CommunicationRelayConfiguration
         :rtype: ~azure.communication.networktraversal.CommunicationRelayConfiguration
         """
+        if user is None:
+            return await self._network_traversal_service_client.communication_network_traversal. \
+                issue_relay_configuration(None, **kwargs)
         return await self._network_traversal_service_client.communication_network_traversal.issue_relay_configuration(
             user.properties['id'],
             **kwargs)
diff --git a/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples.py b/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples.py
index 96589bd48dd4..e0a658cbd187 100644
--- a/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples.py
+++ b/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples.py
@@ -58,6 +58,26 @@ def get_relay_config(self):
             print("Icer server:")
             print(iceServer)
 
+    def get_relay_config_no_identity(self):
+        from azure.communication.networktraversal import (
+            CommunicationRelayClient
+        )
+
+        if self.client_id is not None and self.client_secret is not None and self.tenant_id is not None:
+            from azure.identity import DefaultAzureCredential
+            endpoint, _ = parse_connection_str(self.connection_string)
+            relay_client = CommunicationRelayClient(endpoint, DefaultAzureCredential())
+        else:
+            relay_client = CommunicationRelayClient.from_connection_string(self.connection_string)
+
+        print("Getting relay configuration")
+        relay_configuration = relay_client.get_relay_configuration()
+
+        for iceServer in relay_configuration.ice_servers:
+            print("Icer server:")
+            print(iceServer)
+
 if __name__ == '__main__':
     sample = CommunicationRelayClientSamples()
     sample.get_relay_config()
+    sample.get_relay_config_no_identity()
diff --git a/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples_async.py b/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples_async.py
index 7eb8c56d6950..5d3932338adf 100644
--- a/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples_async.py
+++ b/sdk/communication/azure-communication-networktraversal/samples/network_traversal_samples_async.py
@@ -57,9 +57,28 @@ async def get_relay_config(self):
             print("Icer server:")
             print(iceServer)
 
+    async def get_relay_config_no_identity(self):
+        from azure.communication.networktraversal.aio import CommunicationRelayClient
+
+        if self.client_id is not None and self.client_secret is not None and self.tenant_id is not None:
+            from azure.identity.aio import DefaultAzureCredential
+            endpoint, _ = parse_connection_str(self.connection_string)
+            relay_client = CommunicationRelayClient(endpoint, DefaultAzureCredential())
+        else:
+            relay_client = CommunicationRelayClient.from_connection_string(self.connection_string)
+
+        async with relay_client:
+            print("Getting relay configuration")
+            relay_configuration = await relay_client.get_relay_configuration()
+
+        for iceServer in relay_configuration.ice_servers:
+            print("Icer server:")
+            print(iceServer)
+
 async def main():
     sample = CommunicationRelayClientSamples()
     await sample.get_relay_config()
+    await sample.get_relay_config_no_identity()
 
 if __name__ == '__main__':
     loop = asyncio.get_event_loop()
diff --git a/sdk/communication/azure-communication-networktraversal/setup.py b/sdk/communication/azure-communication-networktraversal/setup.py
index 21d2a6670ad9..54bb8f601be2 100644
--- a/sdk/communication/azure-communication-networktraversal/setup.py
+++ b/sdk/communication/azure-communication-networktraversal/setup.py
@@ -63,7 +63,7 @@
     ]),
     install_requires=[
         'msrest>=0.5.0',
-        'azure-core<2.0.0,>=1.2.2'
+        'azure-core<2.0.0,>=1.16.0'
     ],
     extras_require={
         ":python_version<'3.0'": ['azure-communication-nspkg'],
diff --git a/sdk/communication/azure-communication-networktraversal/swagger/SWAGGER.md b/sdk/communication/azure-communication-networktraversal/swagger/SWAGGER.md
index a35f800d2ed7..4b4fb6c76e35 100644
--- a/sdk/communication/azure-communication-networktraversal/swagger/SWAGGER.md
+++ b/sdk/communication/azure-communication-networktraversal/swagger/SWAGGER.md
@@ -17,7 +17,7 @@ autorest ./SWAGGER.md
 ### Settings
 ``` yaml
 tag: package-2021-06-21-preview
-require: https://raw.githubusercontent.com/Azure/azure-rest-api-specs/86408a8777e623f5f41e260472ed831309b85086/specification/communication/data-plane/Turn/readme.md
+require: https://raw.githubusercontent.com/Azure/azure-rest-api-specs/4c8162b0a1f7bbd46e9aedc0e19bbe181e549c4c/specification/communication/data-plane/NetworkTraversal/readme.md
 output-folder: ../azure/communication/networktraversal/_generated/
 namespace: azure.communication.networktraversal
 license-header: MICROSOFT_MIT_NO_VERSION
diff --git a/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration.yaml b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration.yaml
index d85f4a21c227..10e71f3b7d7e 100644
--- a/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration.yaml
+++ b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration.yaml
@@ -13,9 +13,9 @@ interactions:
       Content-Type:
       - application/json
       User-Agent:
-      - azsdk-python-communication-identity/1.0.1 Python/3.7.4 (Windows-10-10.0.21390-SP0)
+      - azsdk-python-communication-identity/1.0.1 Python/3.7.4 (Windows-10-10.0.22454-SP0)
       x-ms-date:
-      - Sat, 17 Jul 2021 00:38:51 GMT
+      - Fri, 01 Oct 2021 23:03:08 GMT
       x-ms-return-client-request-id:
       - 'true'
     method: POST
@@ -25,13 +25,14 @@ interactions:
       string: '{"identity": {"id": "sanitized"}}'
     headers:
       api-supported-versions:
-      - 2020-07-20-preview2, 2021-02-22-preview1, 2021-03-07, 2021-03-31-preview1
+      - 2020-07-20-preview2, 2021-02-22-preview1, 2021-03-07, 2021-03-31-preview1,
+        2021-10-31-preview
       content-type:
       - application/json; charset=utf-8
       date:
-      - Sat, 17 Jul 2021 00:38:51 GMT
+      - Fri, 01 Oct 2021 23:03:07 GMT
       ms-cv:
-      - li8R230IT0W2BXH+OJvqUA.0
+      - FV1I5QAfBk69A3bUGCU3xg.0
       request-context:
       - appId=
       strict-transport-security:
@@ -41,7 +42,7 @@ interactions:
       x-cache:
       - CONFIG_NOCACHE
       x-processing-time:
-      - 93ms
+      - 179ms
     status:
       code: 201
       message: Created
@@ -59,26 +60,27 @@ interactions:
       Content-Type:
       - application/json
       User-Agent:
-      - azsdk-python-communication-networktraversal/1.0.0b1 Python/3.7.4 (Windows-10-10.0.21390-SP0)
+      - azsdk-python-communication-networktraversal/1.0.0b1 Python/3.7.4 (Windows-10-10.0.22454-SP0)
       x-ms-date:
-      - Sat, 17 Jul 2021 00:38:52 GMT
+      - Fri, 01 Oct 2021 23:03:08 GMT
       x-ms-return-client-request-id:
       - 'true'
     method: POST
     uri: https://sanitized.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
   response:
     body:
-      string: '{"expiresOn": "2021-07-17T00:38:52.4840215+00:00", "iceServers": [{"urls":
-        ["turn.skype.com"], "username": "sanitized", "credential": "sanitized"}]}'
+      string: '{"expiresOn": "2021-10-01T23:03:08.8008369+00:00", "iceServers": [{"urls":
+        ["turn.skype.com", "turn:world.relay.skype.com:3478"], "username": "sanitized",
+        "credential": "sanitized"}]}'
     headers:
       api-supported-versions:
       - 2021-02-22-preview1, 2021-06-21-preview
       content-type:
       - application/json; charset=utf-8
       date:
-      - Sat, 17 Jul 2021 00:38:52 GMT
+      - Fri, 01 Oct 2021 23:03:08 GMT
       ms-cv:
-      - znyph9q/bECDayYlLuWYlw.0
+      - T1Tb9K+y6E6pLXFgnCjmmg.0
       request-context:
       - appId=
       strict-transport-security:
@@ -88,7 +90,7 @@ interactions:
       x-cache:
       - CONFIG_NOCACHE
       x-processing-time:
-      - 223ms
+      - 128ms
     status:
       code: 200
       message: OK
diff --git a/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration_without_identity.yaml b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration_without_identity.yaml
new file mode 100644
index 000000000000..7a1fa30695d5
--- /dev/null
+++ b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client.test_get_relay_configuration_without_identity.yaml
@@ -0,0 +1,50 @@
+interactions:
+- request:
+    body: '{}'
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '2'
+      Content-Type:
+      - application/json
+      User-Agent:
+      - azsdk-python-communication-networktraversal/1.0.0b1 Python/3.7.4 (Windows-10-10.0.22454-SP0)
+      x-ms-date:
+      - Fri, 01 Oct 2021 23:03:08 GMT
+      x-ms-return-client-request-id:
+      - 'true'
+    method: POST
+    uri: https://sanitized.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
+  response:
+    body:
+      string: '{"expiresOn": "2021-10-01T23:03:09.2274327+00:00", "iceServers": [{"urls":
+        ["turn.skype.com", "turn:world.relay.skype.com:3478"], "username": "sanitized",
+        "credential": "sanitized"}]}'
+    headers:
+      api-supported-versions:
+      - 2021-02-22-preview1, 2021-06-21-preview
+      content-type:
+      - application/json; charset=utf-8
+      date:
+      - Fri, 01 Oct 2021 23:03:08 GMT
+      ms-cv:
+      - c1XdV0vrhEOnOWF2LrDjGQ.0
+      request-context:
+      - appId=
+      strict-transport-security:
+      - max-age=2592000
+      transfer-encoding:
+      - chunked
+      x-cache:
+      - CONFIG_NOCACHE
+      x-processing-time:
+      - 311ms
+    status:
+      code: 200
+      message: OK
+version: 1
diff --git a/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration.yaml b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration.yaml
index f049b6bb912c..0902b75be361 100644
--- a/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration.yaml
+++ b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration.yaml
@@ -9,9 +9,9 @@ interactions:
       Content-Type:
       - application/json
       User-Agent:
-      - azsdk-python-communication-identity/1.0.1 Python/3.7.4 (Windows-10-10.0.21390-SP0)
+      - azsdk-python-communication-identity/1.0.1 Python/3.7.4 (Windows-10-10.0.22454-SP0)
       x-ms-date:
-      - Sat, 17 Jul 2021 00:38:52 GMT
+      - Fri, 01 Oct 2021 23:03:09 GMT
       x-ms-return-client-request-id:
       - 'true'
     method: POST
@@ -21,19 +21,19 @@ interactions:
       string: '{"identity": {"id": "sanitized"}}'
     headers:
       api-supported-versions: 2020-07-20-preview2, 2021-02-22-preview1, 2021-03-07,
-        2021-03-31-preview1
+        2021-03-31-preview1, 2021-10-31-preview
       content-type: application/json; charset=utf-8
-      date: Sat, 17 Jul 2021 00:38:52 GMT
-      ms-cv: Esxlip8LGUqHgpjD5vk7lA.0
+      date: Fri, 01 Oct 2021 23:03:09 GMT
+      ms-cv: hEHBfG5MIkqgUk3m0Wdarw.0
       request-context: appId=
       strict-transport-security: max-age=2592000
       transfer-encoding: chunked
       x-cache: CONFIG_NOCACHE
-      x-processing-time: 90ms
+      x-processing-time: 145ms
     status:
       code: 201
       message: Created
-    url: https://turn-python-test.communication.azure.com/identities?api-version=2021-03-07
+    url: https://smstestapp.communication.azure.com/identities?api-version=2021-03-07
 - request:
     body: '{"id": "sanitized"}'
     headers:
@@ -44,29 +44,30 @@ interactions:
       Content-Type:
       - application/json
       User-Agent:
-      - azsdk-python-communication-networktraversal/1.0.0b1 Python/3.7.4 (Windows-10-10.0.21390-SP0)
+      - azsdk-python-communication-networktraversal/1.0.0b1 Python/3.7.4 (Windows-10-10.0.22454-SP0)
       x-ms-date:
-      - Sat, 17 Jul 2021 00:38:52 GMT
+      - Fri, 01 Oct 2021 23:03:09 GMT
       x-ms-return-client-request-id:
       - 'true'
     method: POST
     uri: https://sanitized.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
   response:
     body:
-      string: '{"expiresOn": "2021-07-17T00:38:53.1187977+00:00", "iceServers": [{"urls":
-        ["turn.skype.com"], "username": "sanitized", "credential": "sanitized"}]}'
+      string: '{"expiresOn": "2021-10-01T23:03:10.0042344+00:00", "iceServers": [{"urls":
+        ["turn.skype.com", "turn:world.relay.skype.com:3478"], "username": "sanitized",
+        "credential": "sanitized"}]}'
     headers:
       api-supported-versions: 2021-02-22-preview1, 2021-06-21-preview
       content-type: application/json; charset=utf-8
-      date: Sat, 17 Jul 2021 00:38:52 GMT
-      ms-cv: 6onUtJzytUObrG0T35kMWw.0
+      date: Fri, 01 Oct 2021 23:03:09 GMT
+      ms-cv: pDiu+i86Fk+DMv1bFRw7qA.0
       request-context: appId=
       strict-transport-security: max-age=2592000
       transfer-encoding: chunked
       x-cache: CONFIG_NOCACHE
-      x-processing-time: 157ms
+      x-processing-time: 118ms
     status:
       code: 200
       message: OK
-    url: https://turn-python-test.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
+    url: https://smstestapp.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
 version: 1
diff --git a/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration_without_identity.yaml b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration_without_identity.yaml
new file mode 100644
index 000000000000..93ea5a5eea47
--- /dev/null
+++ b/sdk/communication/azure-communication-networktraversal/tests/recordings/test_communication_relay_client_async.test_get_relay_configuration_without_identity.yaml
@@ -0,0 +1,38 @@
+interactions:
+- request:
+    body: '{}'
+    headers:
+      Accept:
+      - application/json
+      Content-Length:
+      - '2'
+      Content-Type:
+      - application/json
+      User-Agent:
+      - azsdk-python-communication-networktraversal/1.0.0b1 Python/3.7.4 (Windows-10-10.0.22454-SP0)
+      x-ms-date:
+      - Fri, 01 Oct 2021 23:03:10 GMT
+      x-ms-return-client-request-id:
+      - 'true'
+    method: POST
+    uri: https://sanitized.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
+  response:
+    body:
+      string: '{"expiresOn": "2021-10-01T23:03:10.2349126+00:00", "iceServers": [{"urls":
+        ["turn.skype.com", "turn:world.relay.skype.com:3478"], "username": "sanitized",
+        "credential": "sanitized"}]}'
+    headers:
+      api-supported-versions: 2021-02-22-preview1, 2021-06-21-preview
+      content-type: application/json; charset=utf-8
+      date: Fri, 01 Oct 2021 23:03:09 GMT
+      ms-cv: roYDP9+E6EKToiocQJpVlg.0
+      request-context: appId=
+      strict-transport-security: max-age=2592000
+      transfer-encoding: chunked
+      x-cache: CONFIG_NOCACHE
+      x-processing-time: 117ms
+    status:
+      code: 200
+      message: OK
+    url: https://smstestapp.communication.azure.com/networktraversal/:issueRelayConfiguration?api-version=2021-06-21-preview
+version: 1
diff --git a/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client.py b/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client.py
index 85e51a96592a..70e8cad42fe8 100644
--- a/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client.py
+++ b/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client.py
@@ -60,4 +60,29 @@ def test_get_relay_configuration(self, communication_livetest_dynamic_connection
                 print('Url: ' + url)
 
         assert config is not None
+
+    @CommunicationPreparer()
+    def test_get_relay_configuration_without_identity(self, communication_livetest_dynamic_connection_string):
+        
+        relay_client = CommunicationRelayClient.from_connection_string(
+            communication_livetest_dynamic_connection_string,
+            http_logging_policy=get_http_logging_policy()
+        )
+
+        print('Getting relay config:\n')
+        config = relay_client.get_relay_configuration()
+        
+        print('Ice Servers: \n')
+        for iceServer in config.ice_servers:
+            assert iceServer.username is not None
+            print('Username: ' + iceServer.username)
+
+            assert iceServer.credential is not None
+            print('Credential: ' + iceServer.credential)
+            
+            assert iceServer.urls is not None
+            for url in iceServer.urls:
+                print('Url: ' + url)
+
+        assert config is not None
         
\ No newline at end of file
diff --git a/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client_async.py b/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client_async.py
index 7546cb7923b7..a4e09de008fa 100644
--- a/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client_async.py
+++ b/sdk/communication/azure-communication-networktraversal/tests/test_communication_relay_client_async.py
@@ -63,4 +63,30 @@ async def test_get_relay_configuration(self, communication_livetest_dynamic_conn
                 print('Url:' + url)
 
         assert config is not None
+
+    @CommunicationPreparer()
+    async def test_get_relay_configuration_without_identity(self, communication_livetest_dynamic_connection_string):     
+
+        networkTraversalClient = CommunicationRelayClient.from_connection_string(
+            communication_livetest_dynamic_connection_string,
+            http_logging_policy=get_http_logging_policy()
+        )
+
+        async with networkTraversalClient:
+            print('Getting relay config:\n')
+            config = await networkTraversalClient.get_relay_configuration()
+        
+        print('Ice Servers Async:\n')
+        for iceServer in config.ice_servers:
+            assert iceServer.username is not None
+            print('Username: ' + iceServer.username)
+
+            assert iceServer.credential is not None
+            print('Credential: ' + iceServer.credential)
+            
+            assert iceServer.urls is not None
+            for url in iceServer.urls:
+                print('Url:' + url)
+
+        assert config is not None
         
\ No newline at end of file
diff --git a/shared_requirements.txt b/shared_requirements.txt
index 3c9254069d21..8940dba5f457 100644
--- a/shared_requirements.txt
+++ b/shared_requirements.txt
@@ -207,7 +207,7 @@ opentelemetry-sdk<2.0.0,>=1.0.0
 #override azure-communication-sms azure-core<2.0.0,>=1.11.0
 #override azure-communication-phonenumbers azure-core<2.0.0,>=1.11.0
 #override azure-communication-identity azure-core<2.0.0,>=1.11.0
-#override azure-communication-network-traversal azure-core<2.0.0,>=1.11.0
+#override azure-communication-networktraversal azure-core<2.0.0,>=1.16.0
 #override azure-mgmt-communication azure-core<2.0.0,>=1.9.0
 #override azure-ai-metricsadvisor azure-core<2.0.0,>=1.6.0
 #override azure-ai-metricsadvisor msrest>=0.6.21