Direct routing between IP and GSM network without using the FXO port or PSTN network any more.

Witura’s VOIP GSM gateway is a professional, heavy duty gateway with either 32 ports, suitable for terminating low and high volumes of mixed call traffic to both cellular and landline. The system is easy to install, and connect directly to IP based system via existing IP or VOIP network or to non IP systems via an E1 T1 PRI Interface to achieve the significant saving on long distance and roaming charges.

The VOIP GSM gateway is the cost effective connection between GSM networks and VOIP via 323 or SIP protocol. This call termination solution significantly lowering call interconnection charges. The inbound and outbound VOIP and cellular calls all in one compact box.

Main features:
- Support H.323, SIP, RFC3261 compliance.
- Network frequency: Quad band 850/900/1800/1900Mhz.
- Codec:G.711u Law ,G.711a Law,G.723 5.3k,G.723 6.3k,G.729AG.
- TCP/IP:IP/TCP/UDP/RTP/RTCP/CMP/ARP/RARP/SNTP DHCP.
- IVR Voice configuration.
- Built in NAT IP sharing function.
- Basic PBX function, private branch exchange.
- Concentrated network management systems, NMS.
- Peer to peer mode, non gatekeeper.
- Line hunting.
- 16-32 RJ-11 FXS ports.
- E.164 telephone number plan.
- DTMF dialing.
- PPPoE connection.
- DTMF detection or generation.
- FSK and DTMF Caller ID.
- Remote configuration reset via telnet.
- LAN interface: two RJ 45 connector of 10 100 Base T.
- Microsoft Net meeting v3.0 compatible.
- Support static IP and DHCP.
- Built in DHCP Server function.
- QOS by TOS, type of service.
- SNTP simple network time protocol.
- Bell signal.
- Antenna socket, FME.
- IP usage switch.
- Working state indicator and Signal Strength indicator.

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