[cisco-voip] Cisco 7940/7960 - Unregisters

[Aman Chugh]

Robin,

We also had a similar setup where phones register using a vpn link and we
were also seeing unregistrations.This can happen to due to several reasons.
Ipphone sends skinny keepalive messages every 30 seconds and waits for ack
as these are TCP packets and if it misses three acks it unregisters,I got
around this Issue by using qos and giving guaranteed bandwidth to signalling
traffic using port TCP 2000-2002.

Aman

On 11/15/06, Robin Inderberg <robin.inderberg at candidator.se> wrote:
>
>  Hi,
>
>
>
> We have a site that connects to the CCM through the WAN via a VPN tunnel.
>
> The 7940 and 7960 do unregister themselves a couple of times/day.
>
> The customer says that he need to unplug the powerchord and plug it in
> again, then it works.
>
> On the display it only says registering with cisco callmanager.
>
>
>
> The phone load I use is P00307020400 and we have CCM 4.2(3).
>
> Anyone else who have seen this one?
>
>
>
> They also got a bunch of 7912 and a few 7920, they don't have the same
> problem.
>
>
>
> Thank you in advance,
>
>
>
>
>
> Med vänliga hälsningar
>
>
>
> Robin Inderberg
>
> robin.inderberg at candidator.se
>
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