INFORMATION

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:

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:

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

4.   Solutions
for IP call center

5.Example
Application