diff --git a/assistant/src/calls/call-store.ts b/assistant/src/calls/call-store.ts
index 126d7ecfc4d..cfdbe414948 100644
--- a/assistant/src/calls/call-store.ts
+++ b/assistant/src/calls/call-store.ts
@@ -1,4 +1,4 @@
-import { eq, and, notInArray, desc } from 'drizzle-orm';
+import { eq, and, or, notInArray, desc } from 'drizzle-orm';
 import { v4 as uuid } from 'uuid';
 import { getDb } from '../memory/db.js';
 import { callSessions, callEvents, callPendingQuestions } from '../memory/schema.js';
@@ -117,7 +117,10 @@ export function getActiveCallSessionForConversation(conversationId: string): Cal
     .from(callSessions)
     .where(
       and(
-        eq(callSessions.conversationId, conversationId),
+        or(
+          eq(callSessions.conversationId, conversationId),
+          eq(callSessions.initiatedFromConversationId, conversationId),
+        ),
         notInArray(callSessions.status, ['completed', 'failed', 'cancelled']),
       ),
     )
diff --git a/assistant/src/runtime/channel-readiness-service.ts b/assistant/src/runtime/channel-readiness-service.ts
index f627a0c66af..cffcea2eed8 100644
--- a/assistant/src/runtime/channel-readiness-service.ts
+++ b/assistant/src/runtime/channel-readiness-service.ts
@@ -167,6 +167,30 @@ const smsProbe: ChannelProbe = {
 
 // ── Voice Probe ─────────────────────────────────────────────────────────────
 
+/**
+ * Resolve voice from-number with the same precedence as SMS:
+ * assistant mapping -> env override -> config sms.phoneNumber -> secure key fallback.
+ *
+ * Voice and SMS share the same Twilio phone number infrastructure, so the
+ * resolution logic is identical to resolveSmsPhoneNumber.
+ */
+function resolveVoicePhoneNumber(assistantId?: string): string {
+  try {
+    const raw = loadRawConfig();
+    const smsConfig = (raw?.sms ?? {}) as Record<string, unknown>;
+    const mapped = getAssistantMappedPhoneNumber(smsConfig, assistantId);
+    return mapped
+      || process.env.TWILIO_PHONE_NUMBER
+      || (smsConfig.phoneNumber as string)
+      || getSecureKey('credential:twilio:phone_number')
+      || '';
+  } catch {
+    return process.env.TWILIO_PHONE_NUMBER
+      || getSecureKey('credential:twilio:phone_number')
+      || '';
+  }
+}
+
 const voiceProbe: ChannelProbe = {
   channel: 'voice',
   runLocalChecks(context?: ChannelProbeContext): ReadinessCheckResult[] {
@@ -181,16 +205,18 @@ const voiceProbe: ChannelProbe = {
         : 'Twilio Account SID and Auth Token are not configured',
     });
 
-    const phoneNumber = process.env.TWILIO_PHONE_NUMBER
-      || getSecureKey('credential:twilio:phone_number')
-      || '';
-    const hasPhone = !!phoneNumber;
+    const resolvedNumber = resolveVoicePhoneNumber(context?.assistantId);
+    const hasPhone = !!resolvedNumber || (!context?.assistantId && hasAnyAssistantMappedPhoneNumberSafe());
     results.push({
       name: 'phone_number',
       passed: hasPhone,
       message: hasPhone
-        ? 'Phone number is assigned for voice calls'
-        : 'No phone number assigned for voice calls',
+        ? (context?.assistantId && !resolvedNumber
+          ? `Assistant ${context.assistantId} has no direct mapping, but phone numbers are assigned`
+          : 'Phone number is assigned for voice calls')
+        : (context?.assistantId
+          ? `No phone number assigned for assistant ${context.assistantId}`
+          : 'No phone number assigned for voice calls'),
     });
 
     const hasIngress = hasIngressConfigured();