asterisk users - Jun 2007 - chan_sip.c: That's odd... Got a response on a call we dont know about.

Hi All,

I'm running trixbox 2.0.

The problem:  a remote extension behind a NAT, can call other
extensions, can call any other party, can call voicemail, will ring
when rung, but when answered there is nothing and the dialling party
continues to hear the ring tone.

I'm getting this error in the logs:

"That's odd...  Got a response on a call we dont know about"

I see it's part of the SIP Channel debugging, something is wrong with
the response headers to a request.

I get the message every time it opens a channel to a Snom Technologies
ag Snom300 phone.

Any help much appreciated!
emdeex

Jun  5 13:18:22 DEBUG[26785] acl.c: ##### Testing 124.176.197.132 with
192.168.0.0
Jun  5 13:18:22 DEBUG[26785] chan_sip.c: Target address
124.176.197.132 is not local, substituting externip
Jun  5 13:18:22 DEBUG[26785] chan_sip.c: Allocating new SIP dialog for
7baf6bcf49c29f896c9955256e0afe94@10.0.0.1 - SIP/2.0 (No RTP)
Jun  5 13:18:22 DEBUG[26785] chan_sip.c: That's odd...  Got a response
on a call we dont know about. Cseq 102 Cmd SIP/2.0
Jun  5 13:18:22 VERBOSE[26785] logger.c: Destroying call
'7baf6bcf49c29f896c9955256e0afe94@10.0.0.1'