product description:
Description
GoIP GSM Gateway bridges the GSM and the IP networks by enabling voice communications. It is installed on the Mobile SIM Card, you can register the GSM telephone on the VoIP Softswitch. it can be easily combined into arbitrary number of channels of Large Gateway Group. Low price, perfect sound quality and powerful function make GoIP GSM inevitable choice of system Integrators, traffic Business and soft switch Manufacturers.
Basic Function
Support dual protocols ITUH.323 V4 and IETF SIP V2
GSM module for making GSM calls
Provide 32/16/8/4/1 SIM Card ports for GSM extensions
Support G.711 law, G.729A/B, G.723.1 Codecs
Support Multiple dial plans and line hunt
Support QoS, NAT transversal and router function
Support VAD, CNG, EC
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
Multilanguage support English and Chinese
Competitive Advantage
Remote SIM operation for SIM Card management
SMPP support for 3rd party development of SMS Applications.
server utilities for remote access and SMS management.
Telnet mode for sending AT commands to GSM module.
Compact and light weight design
Direct customer support
Call Forward
1.Call Origination refers to a call initiated from the PSTN or cell phone network is terminated using VoIP.
2.Call Termination refers to a call initiated as a VoIP call is terminated using PSTN or cell phone network.
3.As shown in the network topology diagram, a VoIP Service Provider is using GoIPs as call origination and termination devices.
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