China DBL 8-Channel GSM Gateway GoIP VoIP GSM Gateway

8-Channel GSM VoIP Gateway GoIP8

GoIP GSM Gateway Specification:
1. 8 GSM channels
2. Bulk SMS/USSD
3. Good ACD,ASR
4. Auto Balance and Recharge
5. VoIP SIP&H323
6. Remote Access
7. Optional SMS termination
8. Support IMEI changeable
9.Quad band, IMEI changeable
Overview

A VoIP GSM Gateway (GoIP) bridges voice communications between the GSM and the IP networks seamlessly.In principle, it consists of a GSM module and a VoIP module. With a SIM card installed, the GSM module registers to the GSM network for voice and SMS services.

GoIP comes with various models of 1, 4, 8, 16 and 32GSM channels. When integrating in a VoIP system, GoIP is highly scalable in meeting customer's requirement on the number of channels (lines). In addition with its power functions, high voice quality, and low price, GoIP is an inevitable choice of many system integrators, call termination operatiors, small companies, and individuals.

Key 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 / 900/1800/1900 MHz
Call forward from GSM to VoIP and VoIP to GSM
Call Back

Key Advantages:

Lightweight and Portable
Easy to install and administrate
IMEI Changeable
GSM base Station Optional
Support SIM Bank/ SIM Sever
Manual/ Automatic Selection Operators
Sending and Receiving SMS and USSD (Web Interface)
Flexible Dial plan fo number alternation, call screen
Flexible configuration mode
All functions can be set on web
Provide CDR report

Free Software/Server

Remote Control Server----Access Interface Remotely
Relay Server----Relay Encryption( Make Terminals Traversal the NAT without STUN and Outbound Proxy)
SMS Server----Remote SIM cards; Send Bulk SMS; Provide CDR and ASR; Auto Balance and Recharge.
SIM Server----Remote SIM Cards on Duty; Set GSM Group( Assign several SIMs per GSM Port); Set talk time per SIM, Set Day of week, time range; Monitor CDR, ASR, ACD.
Autocfg Server---- Maintence all DBL termial device anywhere; embeded remote control server; Remote sim auto configuration.
Protocols: SIP/H.323

TCP/IP:IP/TCP/UDP/RTP/RTCP/,CMP/ARP/RARP/SNTP, DHCP/DNSClient,IEEE802.1P/Q.ToS/DiffServ. NAT Traversal, STUN, UPNP.

IP Assignment, Static IP, DHCP, PPPoE