Digital Mobile Trunk is an innovation product. It consists a digital circuit interface, which connects to the E1/T1 PRI of PSTN or PBX and transfers 30 Voice Channel to 31 GSM Module. It also has Calling Detail Record (CDR) for calling management and account handling.
Digital Mobile Trunk is an innovation product. It consists a digital circuit interface, which connects to the E1/T1 PRI of PSTN |