Description:
GS-1i is a GoIP-1 with one FXS port VoIP Gateway with Internal Antenna, it bridges the GSM,Analog
telephone,and the IP networks by enabling voice communications. It is ideal for VoIP to Local
termination where a fixed telephone line (PSTN) is not available or for cellphone roaming via the a
VoIP network. Significant savings on long distance charges can be realized. Low price, perfect
sound quality and powerful function make GoIP GSM inevitable choice of system Integrators,
traffic Business and soft switch Manufacturers.
Basic Function:
● 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
Key Features:
●Open Standard VoIP Protocols (ITU H.323 V4 and IETF SIP V2)
● Single or Multiple Server Registrations
● Two 10/100 Ethernet for WAN / LAN connections
● 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
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
Physical Features:
Competitive Advantage:
● Remote SIM operation for SIM Card management
● SMPP support for 3rd party development of SMS Applications.
● Free 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.
- A call dialed to a GoIP (right hand side) via GSM is first routed via VoIP and then terminated via a VoIP
end point or VoIP Service Provider.
- A VoIP call originated from the left hand side is routed to a GoIP on the right hand side and then is dialed
out as a GSM call.
Call Back:
1,Call Back is referring to the telecommunications event that occurs when the originator of a call is immediately
called back in a second call as a response.
2,GoIP could be used to achieve this function alone or as an terminal that is integrated in an existing call back
server / platform.
3,For standalone operation, GoIP receives a call with caller ID information and then rejects the
call immediately without answering the call. GoIP then calls back the caller so that he can dial a phone number
to make a call. In this case, GoIP must register to a VoIP Service Provider who can offer terminate the call.
4,In a call back system, GoIP acts as a device to initiate the call back function. Typically, this is done in two ways.
The first method is to send an SMS with the callee’s phone number to the GoIP. The GoIP then sends both the
caller’s and callee’s phone numbers to the call back server to complete the call back function. The second method
is to call the GoIP and the hang up (with the call being answered). GoIP sends the caller’s phone number to the
call back server and the call back server calls the caller directly so that the caller can then dial a phone number
to make a call.