Carrier-class reliability

·With a new generation of processor, a separate high-end DSP processing chip and powerful hardware processing, ensure that the equipment at full load conditions remained stable and reliable;

·99.99% availability, support continuous long talk at least 48 hours;

·Support over-current protection function on POTS interfaces ;

·Support the protection of lightning, surges, power lines and other protective lap;

·Full compatible;

Excellent voice communication quality

·Voice Activity Detection (VAD), to effectively save bandwidth resources;

·Comfort Noise Generation (CNG), to provide the same experience as PSTN in calls;

·Adaptive dynamic buffer technology, to meet the application under bad network;

·G.168 128ms echo cancellation technology. This indicator is far higher than the same kind of PBX, eliminating the echo interference caused by long distance call;

·DTMF detection / generation technology, to effectively support the business of the fax, callback, second dial.

Plentiful business functions

·Modification between calling number and called number;

·As a terminal, support the register trunk function to other GK(Gatekeeper) or SIP Server.

·As a gateway, support the control from superior GK or SIP Server to complete the trunking calls;

·Support any switch among SIP, FXO, FXS;

·Support automatic routing function;

·Support high capacity of black and white lists;

·Simultaneously support the register of 4 SIP Server;

·Support output of CDR;

·Fax support T.30, T38 and pass through；

·Support reelection function;

·Support detection of calling number and display of call ID;

·Support generation of dial tone, ring back tone, etc.;

·Port supports gain and comfort adjustment of noise;

·Multi-router and multi-bureau management, group, cluster and exchange management, intelligent routing distribution and equal traffic sharing;

·Support function of dividing groups, for the incoming calls, the subscriber line can be set to line up or take turns to choose;

·Flexibly control the incoming and outgoing of lines, the lock of long-distance calls can be controlled by the phone;

·Complete call functions，it can provide several kinds of call functions and special call way by customer’s request;

·The voice processing capacity support voice play with built-in computer operator;

·High processing capacity in conference;

·Monitor and handle real-time telephone traffic;

Simple and convenient management/maintenance

·The way of management on software: Local and remote WEB; Local and remote Telnet; Console port-Super terminal;

·On hardware, with rack design, they can be installed in the standard 19 inches rack, also can be separately installed in a small machinery room.

Voice Processor VGate 640

1. Rackmount 2U height, dimension: 480mm*286mm*88mm;
2. Specification: up to 64 ports FXO/FXS, up to 32 ports GSM/CDMA/WCDMA;
3. SIP Trunk: 64 or 128;
4. SIP Users: 16 to 1048;
5. Up to 4 E1/T1 ports, supports ISDN PRI, SS7, R2/CAS, Q.SIG, V5.2, DPNSS, etc;

Feature :

· Signaling: SS7, PRI, R2, CAS, Q.SIG, V5.2, and DPNSS;

· VoIP Protocol: SIP and H.248;

· Codec: G.711 U-Law and A-Law, G.711 Appendix 1, G.723.1 and G.723.1 Annex A, G.729 Annex A and Annex B, G.726-16，G.726-32，GSM，GSM-EFR，ARM，ARM-WB, ILBC;

· Fax Protocol: T30, T38, pass through;

· Network Protocol: IP, NAT, ICMP, ARP, HTTP, BOOTP, FTP, TFTP, DHCP, PPPOE, SNMP, Diff-Serv;

· Advanced Voice Processing Technology: Voice Activity Detection (VAD), Comfort Noise Generation (CNG), Echo Cancellation, DTMF, Caller ID, and Flexible input/output Gain Control.