Hello, I am the owner of a small company and we have use IP Office version 3.2.61 with about 15 internal desk phones and 3 remote VoIP sites, two of which have SonicWall tz170s (the two sites we have the most problems with) and one site which uses a new SonicWall tz190 (the site with the least problems). Does anyone have experience with what the VoIP settings should be on the SonicWalls? We recently added one SoftPhone to the mix and some of our VoIP settings got changed on the sonicwall. I know Avaya uses H.323 and so should this always be checked? And what about "Enable consistent NAT." No one at Avaya or SonicWall seems to know what the correct settings are. Does anyone have any experience with this they can share? Thanks very much.