The Follow Me Gateway uses a standard GSM Mobile Phone SIM card to enable calls to a standard analogue telephone line to be diverted to a mobile phone using the mobile phone network.  The advantage of using a Follow Me GSM gateway is that many mobile phone service providers offer free calls between mobiles on certain tariffs.  This means that with the correct tariff you can provide a free of charge call diversion service to a mobile phone.  The only cost would be the rental of the additional SIM card.

Follow Me GSM Gateway for Call Diversion to Mobile Phones The MT-350 GSM Gateway connects to a standard PSTN analogue telephone line and diverts all inbound calls to a mobile phone using a standard SIM card.  Many mobile phone service providers have tariffs that enable free of charge calls betweek mobiles on the same plan so in this case diverted calls will be free of charge.  The Follow Me GSM gateway is an alternative to Call Divert services offered by fixed line operators eg BT Select Services Call Diversion ( *21* ).   More info