Home > Problems > No Ringback

Problem: No Ringback

Ringback is the call progress indication that a caller hears whilst the number they called is ringing. Several problems can affect this function, including incompatibility between the call progress indication in interconnected systems (e.g. PSTN and VoIP) and the audio path through the VoIP systems not being "cut through" until the call is connected.


User cannot tell if the call is connecting and may hang up thinking the call attempt has failed.


Examine configuration of Gateways and Firewall Routers.

Back To Top

Conditions of use: The material on this site is copyright VoIP Troubleshooter LLC and may be freely used but not copied or downloaded.  In making use of this site the user acknowledges that VoIP Troubleshooter LLC or Contributor has no liability for any issues or problems that may arise directly or indirectly as a result of such use.  VoIP Troubleshooter LLC and Contributor are providing this material as-is with no warranty as to correctness or completeness and do not accept any responsibility for any issues or problems of any nature whatsoever that may arise from the use of the material on this site.