VoIP GSM Gateways (8-SIM Card Port)

GoIP GSM Gateways
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.
GoIP (1-SIM Card Port)
Support dual protocols: ITU-H. 323 V4 and IETF SIP V2
GSM module for making GSM calls
Provide 1 SIM Card ports for GSM extensions
Support G. 711 A/μ 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

GoIP-4 (4-SIM Card Port)
Support dual protocols: ITU-H. 323 V4 and IETF SIP V2
GSM module for making GSM calls
Support single or multiple servers registrations
Support G. 711 A/μ 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

GoIP-8(8-SIM Card Port)
Support dual protocols: ITU-H. 323 V4 and IETF SIP V2
GSM module for making GSM calls
Provide 8 SIM Card ports for GSM extensions
Support G. 711 A/μ 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

GoIP GSM Gateway bridges the GSM 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.

Key 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 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
Supported Standards

ITU: H. 323 V4, H. 225, H. 235, H. 245, H. 450
RFC 1889 - RTP/RTCP
RFC 2327 SDP
RFC 2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
RFC 2976 SIP INFO Method
RFC 3261 SIP
RFC 3264 Offer/Answer model with SDP
RFC 3515 SIP REFER Method
RFC 3842 A Message Summary and Message Waiting Indicator
RFC 3489 Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)
RFC 3891 SIP Replaces Header
RFC 3892 SIP Referred-By Mechanism
Draft-ietf-sipping-CC-transfer-04 Session Initiation Protocol Call Control - Transfer
Codec: G. 711 (A/µ Law), G. 729A/B, G. 723.1
DTMF: RFC 2833, In-band DTMF, SIP INFO
Physical and Environmental
Operating temperature: 10° C to 40° C (50° F to 104° F)

Storage temperature: 0° C to 50° C (32° F to 122° F)

Weight: 1300 g (1 lb) (Including AC/DC Adapter)

Size: 220 mm (W) x 380 mm (L) x 85 mm (H) (Width x Length x Heigth

Warranty: One year