Voice Gateways

Voice Gateways

VoIP GSM Gateway(VoIP-GSM) is a device for connecting GSM Network to VoIP Network directly, which can support two-way communication: VoIP to GSM or GSM to VoIP. It is the best solution ever to connect IP-based telephone systems, soft switches, and IP-PBXs to GSM network.


1) Cost Savings ¨C Cost-Savings on phone calls between mobiles or to PSTN.

2) Back up ¨C Should the landline network go down, GSM can be used as a cost-effective backup.

3) Easy to install ¨C IP device with Web based management interface.

4) Easy to integrate.

  • Specification
  • Features


Number of GSM channels (Max) 2
UMTS 900/2100MHz; 850/2100MHz; 850/1900MHz
GSM 850/900/1800/1900MHz
Protocol SIP (RFC3261),IAX2
Transport Protocol UDP,TCP,TLS,SRTP
DTMF RFC2833, SIP INFO, In-band
Codec G.711 a/u-law, G.726, G.729 A, GSM, Speex
LAN 1 (10/100Mbps)
Network DHCP, Firewall, VLAN, DDNS, OpenVPN
Size 200x140x35mm
Power Supply AC 100~240V/50~60Hz (DC 12V, 1A)


  • 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