Gateways

DCB GSM has two sets of high quality E1 PRI digital multiplexing circuits to improve the ordinary PSTN service. Through the DCB GSM, the voice channel can connect with the GSM system easily. DCB GSM is a Digital Channel Bank for GSM. It supplies two sets of professional E1 PRI digital circuits. Beside the integrated function of the Channel Bank, an E1 PRI digital circuit can also transfers to 30 ports of the GSM voice channel. Each voice channel provides the GSM interface by a GSM module and a SIM card.