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Ip Telephony Noise on line

harry.hambi
Level 1
Level 1

‎02-23-2009 07:59 AM - edited ‎03-15-2019 04:23 PM

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

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MARTIN STREULE
Spotlight
Spotlight

‎02-23-2009 08:14 AM

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

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Nicholas Matthews
Level 9
Level 9

‎02-23-2009 08:30 AM

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

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