Shortly after I sent this e-mail I got it figured out. In sip.conf I had
to put nat=no. The phone config also need to have all NAT features
turned off. It was strange because I was sniffing the packets for the
registration and saw no authentication information coming from the phone
(with a really high source port number I might add), then I turned off
NAT in sip.conf and did a reload and all of a sudden the phone was
registered. This is the opposite of what I do for my 7960s running the
7.4 SIP image.
After I got the 7970 working I had a 7961 running the 8.0.2SR1 unified
image and had to do the same thing. The config files and settings for
phones running the newer Cisco SIP software all require these
parameters. Just an F.Y.I.
Jeremiah
The problem is that the 7970 phones by default are listening for replies
to their register requests on port 5060. Unfortunately, the phone sends
them out from random ports. So, if you have nat=yes on the sip peer in
asterisk then the asterisk will send the reply to the port the request
came from and not 5060.
The only deployment we have done of these phones with NAT involved was
for 2 executives at a branch office. In order to get the phones working
we had to set the XML configs for the phones to send the external IP
address of the firewall (you'll need a static IP for this to work) and
to request replies on a custom port other than 5060. We then gave the
phones DHCP reservations so they would always get the same private IP
and mapped the custom sip ports through the firewall to each of the 2
phones. The sip peers in asterisk then had nat=no. Kind of a kludge
but since there were only two 7970 phones it was manageable. The other
cisco phones don't seem to have this problem.
Perhaps somebody out there knows a way to make the 7970 phones accept
SIP responses back to the originating port. I wasted several hours but
couldn't figure it out.
-Evan
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______________________________________________________________
Rock River Internet Jeremiah Millay
202 W. State St, 8th Floor [EMAIL PROTECTED]
Rockford, IL 61101 815-968-9888 Ext. 2202
USA fax 968-6888
_______________________________________________
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