Hello,

can you provide ngrep out put for such call, including the initial INVITE and its responses? Like:

ngrep -d any -qt -W byline port 5060

I have to check if there is double record routing and if the sockets are selected accordingly.

Cheers,
Daniel

On 21/01/14 10:12, Keith wrote:

Hi Daniel,

So I have looked at the packet capture, the "SIP Request: UPDATE" comes in but when that request is forwarded to the phone it sends it from the interface IP and not the sub interface IP. Therefore the message never gets to the phone and the call is hung up after 30 seconds (due to the failure to respond).

Cheers

Keith
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