SIP fails to register - ReadList.com

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SIP fails to register
\ Joe Acquisto (14 Dec 2007)
. \ Zaheer K. Master (14 Dec 2007)
. . \ Joe Acquisto (14 Dec 2007)

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Subject:	SIP fails to register
Group:	Asterisk-users
From:	Joe Acquisto
Date:	14 Dec 2007

Trying to setup SIP to register with a VOIP provider. I am behind a firewall (IPCOP) with NAT.

Getting this, in CLI with SIP debug on.

Retransmitting #2 (no NAT) to aa.bbb.ccc.ddd:5060:
REGISTER sip:voip-xxx.com SIP/2.0
Via: SIP/2.0/UDP 192.168.0.xxx:5060;branch=z9hG4bK727a6144;rport
From: <sip:me>;tag=eufhksk
To: <sip:me>
Call-ID: alongnumber
CSeq: 103 REGISTER
User-Agent: Asterisk PBX
Max-Forwards: 70
Expires: 120
Contact: <sip:s>
Event: registration
Content-Length: 0

I suspect there is something, somewhere, where I can tell it the "Contact" should in fact be my public IP, not the local IP.

Anyone know? Or know what else it might be? I am almost 100% certain my credentials are correct.

joe a.

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