[c-nsp] 5350XM ip-ip gateway problem handling 302 message

[Jay Hennigan]

Scenario:

AS5350XM running 12.4.15(T)7 with UBE (ip-ip gateway) code.

This box is acting as a gateway supporting PRI trunks, a hosted VOIP 
provider, and some users connected by IP with SIP IADs.

The hosted VoIP provider uses a hostname as the SIP peer for 
load-balancing and redundancy. When it receives an INVITE, it returns a 
302 redirecting the call to a contact of the IP address of the actual 
gateway for that call.

Calls from the PRI trunks to the 5350 properly handle the 302 and send a 
second INVITE to the IP, the call completes normally.

Calls originating from a SIP IAD (sip-to-sip) go through the same 
initial scenario, but the 5350 fails to honor the 302 and sends another 
INVITE to the hostname, resulting in another 302, looping and not 
completing.

I can't find anything in bug tool, have tried several options under the 
voice service voip config section with no luck.

Anyone else seen this or have any ideas?

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV