VOIP GSM gateway 16 channels GOIP

1. 16 GSM channels

2. Quad band ,IMEI changeable

3. Support SIM Bank

4. VoIP SIP&H323

5. Remote AccessÂ

6. Optional SMS termination

7. Auto Balance and Recharge

Main Functions:

GSM Carriers and Base Stations Optional

Sending SMS / USSD via built-in webpage or SMS Server

Remote SIM

Auto balance check and recharge (prepaid SIM)

Call time restrictions

Remote Control Management

Relay Server support for NAT and encryption of IP packets

PPTP VPN and Relay Encryption

Built-in SIP Proxy for peer-to-peer operation

GSM Quad Band: 850 MHz

Call forward from GSM to VoIP and VoIP to GSM

Call Back