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Webex - Expressway - Constant SIP Register and IP Changes

cnattress
Level 1
Level 1

Hi,

While troubleshooting some issues, I noticed our Webex clients, registering using MRA through clustered Expressway E and Expressway C, are sending Register messages every two minutes. This may be normal, but this is creating an end point registered message in CUCM's SysLog, flooding the log. There are are also messages with a "reason" code that the IP address changed.

I do see clients registering through and the various Expressway Cs but then switching to another C and thus the registration IP changes.

I want to ask, is this normal? Does anyone else see this behavior?

Webex clients that are on-net, like physical phones, do not exhibit this behavior; to me, this behavior would appear "unstable".

Thank you!

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