Call Mgr 6 - audio dropping

[bigchiefdan]

This is a shot in the dark...
I have an issue with my IPCC call center whereas some calls will experience a delayed audio. Call comes in, caller cannot hear us but we can hear them, if they stay on the line for a few more seconds then the call is fine.
This also happens in reverse where they hear us saying our greeting, but we cannot hear them. again if we hang loose for a few seconds it becomes fine.
Now the issue has come up that on some outbound calls after speaking for a few moments the audio will cut out on one side.

Any ideas on where to start?
All netowrk traffic seems fine, telco tests fine. routing maps fine.

 

[whykap]

have you upgrade anything lately?
Including any network devices, switches, routers, WAN links

 

[bigchiefdan]

no

 

[whykap]

As you said this is a shot in the dark with no more details:
Audio delay can be:
QoS issue,
Phone load issue,
a software bug

Now you also mention audio cutting out in the middle of the conversation. That is probably a QoS issue.

If this started and NOTHING has changed on your network at all, then it is probably a bug.

When was the last time you rebooted your cucm servers?
What exact version of cucm are you on?

 

[bigchiefdan]

sorry i have not given alot of details,I do not know where to begin.

Im on 6.1.3
We rebooted about 2 weeks ago.

At first I thought it would be with the IPCC, but now Im wondering if its a bug with the call center phones since it affected their outbound calls. 7961 series with the side car.