8-channel gsm voip gateway

الوصف

KEY FEATURES:
Multiple GoIP8 grouping mode Provide one cellular channels for IP-PBX Open Standard VoIP Protocols (ITU H. **3 V4 and IETF SIP V2) Single or Multiple Server Registrations Two *0/**0 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, 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 **3MHz DSP: VPDSP**1 **6MHz Memory: RAM *6MB/ Flash 4MB GSM Module: Type: **0MHz, **0MHz, ***0MHz, ***0MHz Power: Input AC**0V ~ **0V, output DC*2V/2A ***0% Power consumption: *2W maximum Network card: **0/*0Base-T x2 LED: Operation and lines light GSM Passway: Eight Operating temperature: *0° C to *0° C (*2° F to **4° F) Storage temperature: 0° C to *0° C (*2° F to **2° F) Working Humidity: *0% ~ *0% Not congealed Weight: ***3 g (1 lb) (Including AC/DC Adapter) Warranty: One year