User manual

VOPTech Document Four Channel’s GSM VoIP Gateway

3.8 GSM Group Mode

GoIP4 supported multi_devices cooperate with one group; it can work like a

multi_channels GSM gateway. Any one GoIP4’s channels are can work as Group Server

Mode or Client Mode.

Server Mode:

When one channels running in Server Mode;

It can auto forward the GSM’s incoming call to any free client channels.

At this moment, you only offer this channel’s GSM number to your user.

Client Mode:

When one channel running at Client Mode;

It will auto send itself GSM number and state to Server mode channel and waiting the

incoming call forward from Server channel.

You must enter itself GSM number and Server GoIP4 device’s IP address into follow

option.