E1 / T1 PRI ISDN GSM Gateway also known as GSM Channel Banks / GSM Multiplexers / Digital Mobile Trunk (DMT).It accepts incoming call from E1/T1 PRI of ISDN or PBX and chooses one GSM channel to dial out according to the prefix of the destination mobile number. In this way, we can have least cost routing (LCR). DMT can provide Call Detail Record (CDR) for traffic and accounting management.

 A compact E1 / T1 PRI ISDN GSM Gateways / GSM Channel Bank digitally integrates the wireless GSM interfaces and the E1 / T1 interface, therefore no additional GSM equipment is required to connect the T1 to the local GSM wireless network. It provides superior voice technology and enables up to 30 simultaneous calls.

This device is an ideal solution for Call Centers, large organizations with high call traffic to GSM networks or alternative carriers as a call termination tool and corporate head offices with a VoIP network linking remote sites.