Sangoma Gateway PSTN Trunking Termination

Although many SMBs and Enterprises are transitioning to SIP trunks, there are still many T1 and E1 ISDN trunks in existence.

Depending on the market and customer need, keeping these legacy trunks in operation may be more cost effective than switching to SIP trunks.

In the above image, a customer is moving to an open source PBX but still needs TDM connectivity. Typically, open source PBXs run in a server with nothing but Ethernet connectivity to the outside world. This means a gateway will be needed for PSTN connectivity.