I'm going to gues that nat is involved... and the polycom doesn't rfc3581 so you'll need to turn on NDLB-force-rport on the sip profile so we respond on the port we received the initial inbound registration from.  Notice it comes in from 5076.. yet we 401 it to 5060....   This is the reason the polycom is number two on my list.

/b

On Aug 22, 2008, at 8:43 PM, Craig Guy wrote:

Hi,
 
I’ve got an issue trying to register a Polycom IP320 against FS 1.0.1, as below the Polycom is coming from and registering with a contact port 5076, however FS is sending the 401 to port 5060.  Any ideas?  I have a Snom registering successfully as 1000 from behind a different NAT.  Any ideas?
 
#
U 203.23.223.109:5076 -> 4.53.88.29:5060
REGISTER sip:4.53.88.29 SIP/2.0.
Via: SIP/2.0/UDP 192.168.1.1;branch=z9hG4bK7db8749a8ECDE4D3.
From: "Craig Guy" <sip:1001@4.53.88.29>;tag=914B0517-5EB6FA00.
CSeq: 1 REGISTER.
Contact: <sip:1001@203.23.223.109:5076>;methods="INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE, REFER".
User-Agent: PolycomSoundPointIP-SPIP_320-UA/2.1.2.0049.
Max-Forwards: 70.
Expires: 3600.
Content-Length: 0.
.
 
#
U 4.53.88.29:5060 -> 203.23.223.109:5060
SIP/2.0 401 Unauthorized.
Via: SIP/2.0/UDP 192.168.1.1;branch=z9hG4bK7db8749a8ECDE4D3;received=203.23.223.109.
From: "Craig Guy" <sip:1001@4.53.88.29>;tag=914B0517-5EB6FA00.
To: <sip:1001@4.53.88.29>;tag=7U95e600jSH5e.
CSeq: 1 REGISTER.
User-Agent: FreeSWITCH-mod_sofia/1.0.1-exported.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH.
Supported: 100rel, timer, precondition, path, replaces.
WWW-Authenticate: Digest realm="4.53.88.29", nonce="b59a58b1-bdc6-4487-b346-12838168039d", algorithm=MD5, qop="auth".
Content-Length: 0.
.
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