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WSS120 series SIP VoIP access gateway are a multi-purpose VoIP gateway designed for regular phone service, fax service and PBX service. It can be used by carrier and enterprise as part of the cost effective IP PBX solutions. Fitted in a standard 1U form factor, WSS120 series access gateway Compatible with CISCO, Nortel, HUAWEI, ZTE, Alcatel, Asterisk (trixbox) based on IPPBX, PBX functions

VoIP SIP gateway with PSTN, support iLBC and T.38, Routing table,PBX functions, 3CX,Trixbox,Asterisk;

Maximum User Line Length: 3000 Meters;
Input Voltage: 110-240 AC; 50-60Hz;Input current 1AMP max);
FXS/FXO port connector: Champ 50;
Dimension (H*W*D):4.4*44*44cm;1U in height; 19"chassis;

Main Applications:
Remote SIP IAD gateway for IP-PBX,example asterisk based on IPPBX.
IP based wide area PBX for enterprise, government branches and schools
VoIP Long Distance application for IP phone supermarkets and enterprises
Carrier primary and secondary line service
Small and home offices, Hotel, Call center

Signaling
VoIP Protocol: SIP V2(RFC3261);MGCP(RFC2705),TISPAN(IMS specialty)
OffHook Detection: FXS Loop Start, DDI (Hong Kong)
DTMF: SIP INFO;RFC2833 DTMF Relay; In-Band;

Key Features:
Codec: G.711Alaw; G.711 ulaw; G.729A;G.723.1;GSM; iLBC;
Echo cancellation: G.168; Tail Length 8/16/32 milliseconds;
Dynamic Jitter Buffer; Voice Activity Detector (VAD); and Comfort Noise Generator(CNG);
Calling Control: Called/Calling Number Mapping; Line Hunting;
FAX Processing: T.38 FAX Relay, T.30;
Billing: RADIUS Interface; Polarity Reverse
Configuration: Web Based User Interface, Unified Network Management;

Other Special Feature:
FXO Bypass Line: A bypass FXO line is selected during a network failure or power outage;
Auto Dial: DTMF mode;
Dual Telephone Number: Each line can be configured with two number; a PSTN number and an extension number;
Support Color ring; SMS; call Forwarding, call Waiting, call Transfer; Hot line; Caller id on call waiting ,Special purpose calling codes, Speed dial ,Redials
FXO port support second dialing or hot line mode;
Off-hook Detection: Loop start

Hardware:
Equipped TI high performance DSP processor;
CPU: Motorola Power PC 8250;
Flash Memory: 16Mb;
System Memory: 128Mb;
Maximum User Line Length: 3000 Meters;
Input Voltage: 110-240 AC; 50-60Hz;Input current 1AMP max);
FXS/FXO port connector: Champ 50;
Dimension (H*W*D):4.4*44*44cm;1U in height; 19"chassis;