4 ports fxs/fxo Analog Voice Gateway

Overview:

Analog Gateway/IPPBX locates at the interface between PSTN and IP to achieve the conversion between FXO/FXS and VoIP SIP, meanwhile complete the media stream transformation between the bearer channel of PSTN and IP.

Application:

Used for IPCC, IP Dispatch, Unify Communication, VoIP network, operators, and so on.

Specification:

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.

Physical Capacity and Specification:

Application Topology:

1.   Basic application

2.   Connection for two different places/offices via FXS VoIP Gateway

3.   Function and Features of IPPBX

4.   Solutions for IP call center

5.   Example Application

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