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Explorer

Voice Gateway echo problem

Hi,

My Cisco 2821 router have 2 PVDM2-64. The "sh call active voice echo-cancel summ" result are A/F :

Voice-GW#sh call active voice echo-can summ

CallID     Port         DSP/Ch   Codec    Ecan-type Tail  Called #    Dial-peers

0x111BDFE  0/1/0:15.30      0/1:5    g711ulaw SW-Extend 64 ms *29277728   797/22

0x111BEB2  0/1/1:15.31      0/1:1    g711ulaw SW-Extend 64 ms *082311888  797/40

0x111BEB4  0/1/0:15.31      0/1:2    g711ulaw SW-Extend 24 ms *62379      797/26

We find that the call at port 0/1/0:15.31 have echo problem. We monitor several times and find the echo occured when the DSP/Ch is 0/1:2 or 0/2:2. Please help to mention me the DSP/Ch 0/1:2 or 0/2:2 is which PVDM2-64? Does it mean one of my PVDM2-64 failed? If yes, which one of PVDM2 failed?

Best Regards,

Everyone's tags (4)
1 ACCEPTED SOLUTION

Accepted Solutions
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Hall of Fame Master

Voice Gateway echo problem

Try updating IOS and check again.

View solution in original post

5 REPLIES 5
Highlighted
Hall of Fame Master

Voice Gateway echo problem

Try updating IOS and check again.

View solution in original post

Highlighted
Explorer

Voice Gateway echo problem

We tried to upgrade IOS from 124-15.T4 to 124-25g and monitor about one days, the echo problem seems not occurred again. Please help to mention me why you recommand to upgrade IOS? Thanks a lot...

Highlighted
Hall of Fame Master

Voice Gateway echo problem

Update to get bug fixes.

Thank you for the nice rating and good luck!

Highlighted
Explorer

Voice Gateway echo problem

Thanks a lot. Can you mention me which bug we hit?

Highlighted
Hall of Fame Master

Voice Gateway echo problem

A nasty one for sure.

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