On 1 Mar, 16:36, David Randles <use...@nospam.drandles.net> wrote:
> Anyone successfully using Axon PBX with BT VOIP service ? My Axon PBX
> software works very successfully with other VOIP providers, but with
> BT there is a (re-)registration issue which I can't solve. I keep
> getting error messages every 10 minutes or so:
>
> Registered as sip:44xxxx...@btsip.bt.com
> then 1 minute later...
> Register attempt for sip:44xxxx...@btsip.bt.com failed
> 400 Too many contact addresses
>
> Any advice gratefully received.
>
> David

Hi David,

From the call trace, it looks like that Axon send several "contact"
header in its REGISTER message.Did you set several contact information
in Axon?

You can use WireShark to trace the SIP messages between BT and your
Axon.

In another way, I suggest you to try miniSipServer. It is a SIP server/
pbx for window, and very easy to use.

Tian