NeoGate TG200 2G - VoIP GSM Gateway is a device for connecting GSM network to VoIP Network directly, which can support two-way communication: VoIP to GSM or GSM to VoIP Best solution to connect IP-based telephone systems, soft switches, and IP-PBXs to GSM network. SIP proxy registrar for IP phones included Incoming call routing Outgoing call routing SMS sending and receiving (WEB interface) Call back LCR (Least Cost Routing) Top voice quality (EFR super sound) Simple web based configuration Easy to integrate/Easy to install Incompatible with ATT Network