Check your IP Network Region form, make sure "hairpinning" is disabled, also in the IP-Codec set used for that region, make sure "Direct IP" is enabled on the top of page 2. You might also want to setup your IP-Network-Map to point to this IP-Network-Region form. In short, you need to check all of the IP parameters. Also, on the station forms, bottom of page 1 or 2, "direct-ip" should be a 'y', and "hairpinning" should be a "n"
mitch
AVAYA Certified Specialist