Telecom FM Onestream GBRI2 is a Dual SIM GSM Gateway that connects to the ISDN2e trunk port of a phone system.
The Onestream GBRI2 GSM Gateway also features a built-in VoIP Gateway so calls from the phone system can also be routed over the internet to a VoIP Telephone Service Provider (SIP Trunking) or to a branch office or home worker.
The Onestream GBRI2 can be connected between the ISDN ports of the phone system and the ISDN2e telephone lines and be set up to route calls from the phone system using the mobile phone network, VoIP or pass the call through to the ISDN2e phone line.
The Onestream GBRI2 can connect to 2 x ISDN2e Ports of a telephone system (4 channels) so makes it ideal for a small business to take advantage of low cost calls using the latest GSM Gateway and VoIP Gateway Technology.
The Onestream GBRI2 VoIP GSM Gateway also features mobile extension functionality so that inbound calls to a DDI number can be routed to the phone system extension, whilst at the same time making a call to a mobile phone or IP phone and enabling either extension to answer the call and if thecall is answered on the mobile extension it can even be transferred back to the office phone system.
The Onestream GBRI2 gateway is easily installed and configured using a standard web browser interface and can easily provide a return on investment within a few months.