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HT01G-4000 is a 16 channels VoIP GSM Gateway (GOIP)for call termination(VoIP to GSM and GSM to VoIP). It is SIP based and compatible with Asterisk. It can enable to make 16 calles simuitaneously from IP phone to GSM network and GSM network to IP phone. 

Main Functions:

(1) VoIP(SIP),GSM/UMTS conversion

(2) Following me function

(3) For call termination(VoIP to GSM) and origination(VoIP to GSM)

(4) Web Setting and Management

(5) IMEI changeable

(6) Supply two set extension to connect

(7) Incoming call display, and hide caller number(CLI)

(8) 16 ports with 64 SIM, it can be switch automatic

Specification:

Protocols:H.323,SIP (RFC3261) compliance

Codec:G.711u-Law ,G.711a-Law,G.723(5.3k),G.723(6.3k),G.729AG

TCP/IP:IP/TCP/UDP/RTP/RTCP/CMP/ARP/RARP/SNTP DHCP

Frequancy: Quan band850/900/1800/1900Mhz

IVR Voice configuration

Built-in NAT/IP sharing function

Basic PBX function (Private branch exchange)

Concentrated Network Management Systems(NMS)

Peer-to-Peer mode (non-Gatekeeper)

Line hunting

16 RJ-11 FXS ports or 16 RJ-11 FXO ports

E.164 (Telephone Number Plan)

DTMF dialing

PPPoE connection

DTMF detection/generation

FSK and DTMF Caller ID

Remote configuration/reset via Telnet

LAN interface : two RJ-45 connector of 10/100 Base-T

Microsoft Netmeeting v3.0 compatible

Support static IP and DHCP

Built-in DHCP Server function

QoS by ToS (Type Of Service)

SNTP (Simple Network Time Protocol)Bell signalPolarity reversalAntenna socket (FME)