[cisco-voip] 9951 Re-Registering Often

[Jason Aarons (AM)]

Have you tried another load?  What load are your running, and to what? CME/CUCM?

Is access layer WiFi or wired?  With SIP using Wireshark/ccm traces and phone’s console log can be of help, but in the past this was a load problem.  You can run IP IOS SLA between sites over WAN to confirm.

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matthew Loraditch
Sent: Wednesday, February 19, 2014 12:05 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] 9951 Re-Registering Often


Here is the scenario:
9951s are becoming un registered when we are on backup WAN Connectivity. Our normal WAN is MPLS, backup is DMVPN over the internet. The 9951s randomly unregister when the handset is picked up, when speaker phone is attempted to be used, etc.  The rest of the phones are 6945s and SCCP. We have 0 issues with call control, voice quality, etc, etc with the 6945s and when the 9951s are registered calls complete and sound fine but they often de-register and since we like to use these for receptionists have issues with call flow.

Is there some sort of keep alive timer that affects these models that we should adjust? I’m fairly certain there must be but If anyone has heard of this specific type of scenario please let me know what the fix was.
Thanks!

Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA
1965 Greenspring Drive
Timonium, MD 21093

direct voice. 443.541.1518
fax.  410.252.9284

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