[asterisk-users] Phones Not Registering

[Gordon Henderson]

On Thu, 22 Nov 2007, Edwin Kariuki wrote:

>
>
> Brett Crapser <brett at websmyths.com> wrote:
> On Thu, 22 Nov 2007, Edwin Kariuki wrote:
>> Hi,
>>
>> I have a voip platform that has a SIP server where about 450 sipura
>> phones & adaptors register. On two occassions some phones (which were
>> previously working) have refused to register with certain IPs but when I
>> change the IP the phones register. The failing IP can the work after two
>> days.
>>
>> A trace from the server shows that the phone is sending a registration
>> signal to the server & that the server is also sending back the same but
>> its not getting to the phone.
>>
>> What could be the cause of this?
>
> What kind of voip platform?
> What SIP server?
> Out over the Internet or local lan or a VPN?
>
> Going to need a lot more information...
>
> Brett
>
> The platform run on Linux & asterisk.
> Devices register over the internet.

Some random thoughts:

Too many NAT sessions for the router to track?
Running out of ARP table space on the Linux box if not going via NAT?

Gordon