A VoIP GSM Gateway enables direct routing between IP, digital, analog and GSM networks. With these devices (fixed cellular terminals) companies can significantly reduce the money they spend on telephony, gp-especially the money they spend on calls from IP to GSM. The core idea behind cost saving with VoIP GSM Gateways is Least Cost Routing (LCR). Through least cost routing the gateways select the most cost-effective telephone connection. They check the number which is dialed as well as rate information which is stored in an internal routing table. Because several SIM cards and GSM modules are integrated within the VOIP GSM Gateway it is able to make relatively cheaper GSM to GSM calls instead of expensive IP to GSM calls.

Dinstar VoIP GSM Gateways are multi-functional and are used to effectively smooth the transition between PLMN (GSM/CDMA/WCDMA) and VoIP networks. By installing the mobile SIM Card in the Dinstar gateway, you can register a mobile telephone on the VoIP Softswitch, which also can be easily combined into an arbitrary number of channels. Dinstar VoIP gateways are a cost-effective gateway for SOHO, SMEs and system integrators that also opens up new revenue generating opportunities for service providers.