VoIP E1 Trunk Gateway with Echo Cancellation (NC-MG800)

Specifications

Description:
NC-MG800 is a cost effective and standards-complaint Media Trunk Gateway, which is generally called TG/SG or VoIP Voice Gateway, designed for enterprise users and ITSP (Internet Telephony Service Provider) environments. NC-MG800 locates on the interface of PSTN and IP network, providing signaling transform between SS7, ISDN PRI signaling and SIP signaling, as well as media transfer between the PSTN and IP network.

Function:
·Signalling 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);
·VoIP protocol support:
  -SIP (RFC3261M RFC3362(T.38), RFC2833(DTMF)), RTP/RTCP;
  -Codec:G.711u-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;
·Echo Cancellation: G.168 128 ms Network Echo Canceller;
·Fax Support T38 and pass through;
·64 conference call support;
·Generic Voice Activity Detection (VAD);
·Generic Comfort Noise Generation (CNG);
·Calling control: Called/Calling party number translation, second stage dialing, Auto dialing with DTMF, Ring Back tone;
·Flexible call routing management;

Capacity:
·A 1U equipment can have 2 independent VoIP modules;
·Each Module contains:
-1~4 E1;
-128 G.711 Channels;
-64 G.723, G.726, G.729 Channels;
-32 T.38 Fax Channels, 64 Conference Bridge;

Physical Specification:

Application as follow shows:

Figure 1 ITSP to PSTN

Figure 2 VoIP netwrok for branches

Figure 3 Media gateway of IPCC

Figure 4 Conference Bridge Solutions