RE: How do VOIP phones stay registered with CCM

On Thu, May 05, 2011 at 11:30:00, me you wrote:
> Subject: How do VOIP phones stay registered with CCM
>
> How do VOIP phone register with CCM.
>
> Our network uses point to point RF links, and sometimes the RF takes
> short interference 30 sec to 1 min. This causes the VOIP phone to
> re-register with the call manager, and non-technical people think the
> network is down because the phone are re-registering. How does the
> VOIP phone know the signal has dropped? Does the phone use a type of
> hello or keepalive? can this value be adjusted in the Call manager. I
> tried simple google searches but i could not find the protocol or
> method the phone use to stay registered with the CCM.
>

Take a look at the CCM service parameters for your publisher, the following two should give you what you need:

Station and Backup Server KeepAlive Interval 60
Station KeepAlive Interval 30

The defaults are listed in seconds.

-ryan

Blogs and organic groups at http://www.ccie.net
Received on Thu May 05 2011 - 15:40:56 ART