contact header is fine... but if your switch requires the username in the contact then you can set extension-in-contact on the gateway to force that.

/b

On Jan 29, 2010, at 11:57 AM, RR wrote:

Any ideas? Anyone? All I can tell is that the Contact Header looks a bit dodgey but how that’s causing a 409 is what I don’t get.
 
Help please?
\RR