Hi! I've faced with a common problem and don't know, how to solve it. I am using next topology: localnet_1 with Elastix server and softphone clients, localnet_2 with openvox and clients. I made connection from openvox to elastix just as in manual. The problem is next: users from localnet_2 can register at elastix server and dial inside its subnet, but dialing through gsm-gateway causes "one way audio". There are externaddr and localnet options in elastix server, client options from the localnet_2 subnet are: nat=yes, additional dial options: tTr. Maybe, there are additional nat settings for the trunk between openvox and elastix? Can you help me with any advices? Thank you.