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Community Member

intermittent call volume issues


I'm getting complaints from a customer that on every few calls they receive the two parties can just barely hear each other forcing one of them to hang up and call back.

They have a 2651xm with the voice aim terminating a PRI. There has been a lot of echo complaints as well so I have the echo cancel coverage at 32ms.

They're using call manager 3.3 with sr2.

I'm waiting to find out if the problem is consistent with calls from a certain area code or if it only happens on incoming calls.

Not a lot to go on but maybe someone has a suggestion.


Community Member

Re: intermittent call volume issues

I am getting a similar problem also using 2651xm routers on a PRI. Lots of echo issues at the start but changed echo cancel coverage down to 16 from 32 and echo got better, just getting the odd word in a conversation that goes at least 10 minutes. Also getting some calls that in the middle one party or the other cannot hear anything.

Any help would be appreciated

Community Member

Re: intermittent call volume issues


What ios are you using?

I'm using 12.3(1a) right now.

Community Member

Re: intermittent call volume issues

I am using 12.3(5) echo is a lot better since going to this version

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