Its the lack of rport and if you put NDLB-force-rport it will work. I'm 100% sure of that. /b On Aug 23, 2008, at 5:01 AM, Craig Guy wrote:
Hi Brian,
I suspect that FS may not like the contact header in the sip REGISTER request. The source port of the REGISTER is 5076, the contact header also specifies port 5076, and there is no mention of port 5060 anywhere in the REGISTER message itself. Note that the Polycom has appended ‘methods=’ to the contact header. I’m not familiar enough with the RFC to know if this is valid for the contact header, but I won’t rule out that this additional stuff on the contact header is causing FS to discard it and use port 5060 instead of the requested 5076.
Neither of my Snom or Billion contact headers are formatted this way. I might see if I can find a Polycom firmware update and see if that changes the header.
Craig
Brian West sip:brian@freeswitch.org