TelecomChinaSourcing.com

Your voip supplier from China

If there are only one PBX In the branches, find a service provider which can provide cheap world wide calls and free provider Internal calls. Convert your pbx Into voip enabled IPPBX by a shang332 gateway, then It Is able to call to other branch free. The popular service provider Is skype, find more service provide please follow here.

The simple scenario

Normally there are more than one PBX In a big company. In order to merge them Into one unique system, It must change each PBX Into voip enabled IPPBX first. In this figure, each site shang fxo gateway has some PBX extension. By dial the extension number on the each pbx, the call can be connect to the pbx on the other side. And then you can dial the extension number like what you did locally.

The normal scenario