Onestream GBRIThe Onestream GBRI are Dual SIM ISDN GSM Gateways with built-in VoIP connectivity so it can be connected to an ISDN2e telephone system and deliver calls via GSM, VoIP or pass the call through to the ISDN telephone line. | |
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Buy the CGW-VIP Dual SIM VoIP GSM Gateway suitable for Asterisk and 3CX SIP to GSM call termination - Only £290.00View our extensive range of GSM Gateways covering analogue, ISDN2, ISDN30 and SIP (VoIP) connectivity options.