8 channels E1 VOIP Gateway

Overview:

VoIP media gateway is a cost effective and standards-compliant VoIP Media Trunk Gateway from E1/T1 to Ethernet, which is generally called TG/SG or VoIP Voice Gateway, designed for enterprise users and ITSP (Internet Telephony Service Provider) environments. BD-MG900/BD-MG1000 locates on the interface of PSTN and IP network, providing signaling transformation between SS7, ISDN PRI, R2/CAS, Q.SIG, V5.2, DPNSS signaling and SIP & H.248 Protocol, as well as media transfers between the PSTN and IP network.

With modular design, it’s easily expandable from 1E1/T1 to 52E1/T1.

Application:

·IPCC(IP Call center);

·IP dispatcher;

·Unify communication;

·E1 Trunking port for operators, traditional switch, IP soft switch and software of IPCC; 

Specification:

·Signaling support:

-SS7 (ITU-T Q.700 series), 24 bits/14 bits PC, ISUP/TUP;

-ISDN-PRI (ITU-T Q.931, Q.921);

-V5.2 (ITU-T G.964, G.965)

-R2/CAS

-Q.SIG

-DPNSS 

·VoIP protocol support:

-SIP

 RFC3326(Reason header in SIP messages)

 RFC3372(SIGTRAN and SIP-T)

 RFC2327(sdp)

 RFC3398(ISUP-SIP Mapping)

 RFC3261(sip)

 RFC5806(Diversion Indication in SIP)

 RFC2833( DTMF )

 RFC3362(t.38)

 RFC 3261(SIP 2.0)

 RFC3204(MIME media types for ISUP and QSIG Objects)

 RFC3578(Mapping of ISUP overlap to SIP)

-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，GSM，ARM, ILBC; 

·Fax Support T38 and pass through; 

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

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

Capacity:

·1U equipment BD-MG900 can have 2pcs of independent E1 modules, 2U equipment BD-MG916 can have 4pcs of independent E1 modules, 3.5U equipment BD-MG1000 can have 13pcs of independent E1 modules ; 

·Each Module contains:

-1～4 E1/T1;

-128 G.711 Channels;

-64 G.723, G.726, G.729 Channels;

-32 T.38 Fax Channels, 64 ConfereBDe Bridge;

Physical Specification:

Application Topology:

1.   Basic application SIP to E1, or from TDM to IP

2.   IPCC (IP Call Center)

ITSP to PSTN (Internet Services Provider to PSTN)

Question: Does the 8E1 analog VOIP support SS7? If so,how many SS7 links?

 Answer: Yes.one E1 for one channel SS7 link,so the device can support maximum 8 SS7 links.