Analog Gateway / IP PBX: it can not only work as analog gateway that makes connection between FXO/FXS and VoIP SIP, but also can work as IP PBX that allows other SIP terminals to register into themselves.
There is no changes about these two work modes, only different firmware. As established in 2000, all hardware and software of this product are developed, manufactured, and produced by ownself.
By using carrier-class technology and mature DSP, all Vgate Analog Gateway/ IP PBX serial product have excellent properties and stable performance. With scalable modular design, it is easy to expand according to customers’ requirements.
·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;
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
· 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.