Ringing call sound is not heard

Question

Hi, Using Azure communication SDK services using PSTN calling SDK, there is no sound heard suddenly when initiating call in ringing mode eg: Tring tring. This was happening but suddenly found not working as of today. Audio output is fine and can be heard when the recipient answers the device. Have tried with different carrier phone numbers and result is same as above issue. Any pointers will help please.

Answer 1

Hi @Chirag shah ,
welcome to the Microsoft Q&A Platform!
To resolve the missing ringing sound in the Azure Communication Services (ACS) PSTN calling SDK

Confirm App Audio Permissions and Device Output Ensure the app has permissions for audio playback, and verify that the audio output is set correctly (speakers or headphones).

Update SDK to Latest Version Check if you’re using the latest ACS SDK version. Updates may include fixes for audio issues.

Enable Debug Logging Turn on SDK logging to capture details and identify any audio errors during the call initiation phase.

Check Network Requirements Verify that your network meets ACS’s requirements to avoid audio issues.

Test on Different Devices Run the application on different devices or browsers to determine if the issue is device-specific.

These steps should help identify or resolve the ringing sound issue.
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