Incoming Calls Connect but no Audio

[zmartin83]

When an incoming call comes in, the phone will connect with the call but neither party can hear each other. This happens at random, does not happen on every call.

Logs are showing the call is connected, as does the phone, and then it shows that it is disconnected.

This all started after we changed the extensions on the phone system.

Any ideas?

Thanks,

Zachary

[Carlo Poggiarelli]

Hi Zachary.
Please provide more detail such as platform and signaling protocol you are using.
Thanks

Carlo

Sent from Cisco Technical Support iPhone App

[zmartin83]

Carlo,     

I appologize for the lack of information. Here is what I have running;

Cisco IOS Software, UC500 Software (UC500-ADVIPSERVICESK9-M), Version 15.0(1)XA3a, SBTG Special

on a UC560 using sip connection.

Protocol is sipv2 and using g711ulaw/alaw.

Do not have POTS lines, only sip.