Ip Telephony Noise on line

[harry.hambi]

Hi All,

Looking at a problem where its been descrbed as aNoise on the line......voice breaks up & comes back, any advice would be appreciated.

Rgds.

harry

[MARTIN STREULE]

Between what devices?

If there is a PSTN gateway involved, be sure you have clocking stuff adjusted (network-clock select ...).

Here a pretty old but still okay troubleshooting help:

http://www.cisco.com/en/US/tech/tk652/tk698/technologies_white_paper09186a00801545e4.shtml

Cheers,

Martin

[Nicholas Matthews]

Hi Harry,

You can use 'show call active voice brief' to make sure it's not a packet loss / jitter issue. Attaching a doc on looking at that.

There's a pretty good chance this is coming from the provider, and can be very tricky to troubleshoot.

hth,

nick