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FRITZ! by AVMSetting up a GSM Gateway on a FRITZ!Box with a mobile broadband modem USB stick can be easily done because this is a standard feature of the latest FRITZ!Box models, beginning with the 72XX series and higher. I took as combination a FRITZ!Box 7390 and a Huawei / Vodafone K3765 mobile broadband USB modem stick.

FRITZ! by AVMDisplaying the incoming caller ID (CLIP = Calling Line Identification Presentation) of a GSM gateway (Vodafone RL 500 ZTE) connected to a FRITZ!Box 7170 V2 works by connecting the GSM gateway and the FRITZ!Box 7170 V2 via an own crimped cable. One end of the crimped cable has a 4C2P plug (pins 2 +3), the other end a 8C2P plug (RJ45, pins 3 + 6). If you set up of the GSM Gateway with a Sagem / Vodafone RL 500 on a FRITZ!Box 7170 V2 with the enclosed products’ cables and connectors, the caller ID will not be displayed on your phones for calls coming via the GSM gateway to the FRITZ!Box.

FRITZ! by AVM logo

AVM LogoSetting up a GSM gateway is really simple: What you need is a router with an integrated modem, e.g. a FRITZ!Box 7170, a (secondary) SIM card of a mobile network provider of your choice and a GSM fixed wireless terminal, e.g. a Sagem / Vodafone RL 500 (products can be found in miShopping) . That’s all! OK, you need some cables, too. But that’s indeed everything you need.