Specifications
4 port gsm voip gateway
1,GSM quad band
2,Support IMEI change,VPN,USSD
3,Have encryption built-in
4,one year warranty
Hot voip product! 4 ports gsm voip gateway,computer motherboard for gateway nv54
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, and 16 GSM 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.
Pictures of product:
Key Features - Multiple GoIP4 grouping mode
- Provide one cellular channels for IP-PBX
- Open Standard VoIP Protocols (ITU H.323 V4 and IETF SIP V2)
- Single or Multiple Server Registrations
- Two 10/100 Ethernet circuits connect to the LAN and an additional device
- GSM module for making GSM calls
- Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
- VLAN and QoS support
- NAT Transversal and Router functions
- Voice prompts, HTTP Web, Auto Provision support for configuration and updates
- Highly stable embedded Linux operating system in high performance ARM 9 Processor
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Basic Features - LEDs for Power, Ready, Status, WAN, PC, GSM
- Call forward from GSM to VoIP and VoIP to GSM
- Dial in mode or dial out mode only
- Dial Plan
- Password protection for both GSM dial in or dial out
- Retransmit GSM Caller ID to VoIP terminal
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Enhanced Features - Dynamic selection of codec
- Advanced jitter buffer
- Automatic traversal of NAT and firewall
- VLAN / Qos
- Router
- Echo cancellation for Speakerphone
- Comfort noise generation (CNG)
- Voice activity detection (VAD)
- Auto provisioning (requires auto provisioning server)
- On line firmware upgrade
- Multi-language support: English and Chinese
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Hardware Specifications - Processor: ARM9E 133MHz
- DSP: VPDSP101 196MHz
- Memory: RAM 16MB/ Flash 4MB
- GSM Module: Type: 850MHz, 900MHz, 1800MHz, 1900MHz
- Power: Input AC100V ~ 240V, output DC12V/2A +-10%
- Power consumption: 32W maximum
- Network card: 100/10Base-T x2
- LED: Operation and lines light
- GSM Passway:eight
- Operating temperature: 10°C to 40°C (32°F to 104°F)
- Weight: 2000g (1 lb) (Including AC/DC Adapter)
- Warranty: one year
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