WSS50 Access gateway series are specially desidned for medium and small enterprises.
It integrates the functions of VoIP Gateway and PBX, and is suitable to VoIP applications like long distance by-pass in medium and small enterprises/branches, IP-PBX, IP Centrex, PBX expansion. With WSS50, the enterprises can save the buildup of a PBX system in implementing voice communication.The unique design structure of WSS50 quarantees flexible configuration based on the demand of enterprise users. Installed in a highly compact 1U chassis, WSS50 have the configurable Compact Flash Card;

Intelligent and Rich in Features:
WSS50 adopts embedded linux operating system. Equipped with powerful hardware
configuration and controlled by sophisticated software,the system supports multiple functions and prpvides solutions to a variety of voice communication demands in medium and small enterprise users. It includes PBX functions of Hunting Group, Auto/Manual Attendant, 2nd Stage Dialing, Intercom, Caller ID(FSK/DTMF), Call Forwarding, Call Waiting, Call Holding, Call Restriction, Anonymous Calling, Hotline, Fashion ring,SMS and other PBX features, FXO functions of PSTN fail-over, Volume/Gain Adjustable,Busy Detection, IP Dialer, as well as voice processing technologies of RTP Redundancy, iLBC/GSM Voice Codec, FD Echo Cancellation. MX51 supports SIP and MGCP protocols, and is the ideal gateway for VoIP connection, IPPBX application and PBX system construction of medium and small enterprises.MX51 supports configuration using web based user interface or text commands, and auto upgrade. Through Unified Network Management system , the user can remotely change configuration, upgrade software, collect performance and statistics data, download LOG files, and send bug
alarms.

WSS50 series access gateway Compatible with CISCO, Nortel, HUAWEI, ZTE, Alcatel,
Asterisk (trixbox)  based on IPPBX

Main Applications:
Remote SIP access gateway for IP-PBX example asterisk
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;

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;