Specifications

1,4 channels GSM VoIP Gateway,tens 4 channels
2,support IMEI change
3,encryption builtin
4,call back and SMS
5,H.323 and SIP

4 channels GSM VoIP Gateway,tens 4 channels description
The GSM Fixed Wireless Terminal  4 ports Gateway GoIP-4 is a  4 SIM Card Broadband Phone Gateway that had been developed by CHINASKYLINE Ltd. GoIP_4 SIM Card Broadband Phone Gateway is a new product that connect the GSM and the VOIP seamlessly. To GoIP_4 what is installed on the Mobile SIM Card, you can register the GSM telephone on the VoIP soft switch. SIP and H.323 agreement are built in the GoIP_4 and configured flexible. Caller ID can be seen by using SIP. Flexible routing can meet the need of all kinds of call forwarding; even more special is that GoIP_4 support multi-device group, it can be easily combined into arbitrary number of channels of Large Gateway Group. 

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

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

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

Hardware Specifications Processor: ARM9E 133MHz DSP: VPDSP101 95MHz Memory: RAM 8MB/ Flash 4MB GSM Module: Type: 850MHz, 900MHz, 1800MHz, 1900MHz Power: Input AC100V ~ 240V, output 12 Vdc 500 mA Power consumption: 12W maximum Operating temperature: 10°C to 40°C (32°F to 104°F) Storage temperature: 0°C to 50°C (32°F to 122°F) Working Humidity: 40% ~ 90% Not congealed Weight: 450 g (1 lb) (Including AC/DC Adapter) Warranty: one year

 

Example:

peer to peer:it is a new function that you can use our voip without platform,what is more,it is free roaming for international call.you just pay the local call

Model 1:

 

Model 2:

 

 

Model 3:

 

Model 4:

 

Common function:

1 PSTN to VoIP:

 

Description:using the GoIP to connect with VoIP

2 VoIP to PSTN

Description: using the GoIP to connect with PSTN

3 Calling forward

Description:If you are in china but your main business is in Malaysia, you only put a Malaysia SIM card into the GoIP.In this condition,all calling the SIM number can connect your Phone number in China directly.

4 calling back

Description:When you are using the telephone, and you are want to get  preferential from VoIP Phone anytime and anywhere.You just call the SIM card number which in GoIP,the calling number would send to Server by GoIP,then the server receive the calling number and establish the new calling.Then you will receive the new calling,you just accept the calling,Now you are calling with your customer by server.