In this post I will show you how to connect a pbx, with only an analog trunk available, to Portech MV-370 Gateway SIP/GSM, using a Grandstream HT503 gateway SIP/Analog FXO/FXS.
Informatica Pressapochista
The IT that you never read
In this post I will show you how to connect a pbx, with only an analog trunk available, to Portech MV-370 Gateway SIP/GSM, using a Grandstream HT503 gateway SIP/Analog FXO/FXS.