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 VOIP Softswitch
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
Features:
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 transverse 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 and 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 codex
Advanced jitter buffer
Automatic traversal of NAT and firewall
VLAN/Qos
Router
Echo cancellation for speaker phone
Comfort noise generation (CNG)
Voice activity detection (VAD)
Auto provisioning (requires auto provisioning server)
