Phone:
(701)814-6992

Physical address:
​6296 Donnelly Plaza
Ratkeville, ​Bahamas.

VoIP Media Gateway NC-MG916

VoIP media gateway is a cost effective and standards-compliant VoIP Media Trunk Gateway from E1/T1 to Ethernet, which is generally called TG (Trunking Gateway) or SG (Signaling Gateway) or VoIP Voice Gateway, designed for enterprise users and ITSP (Internet Telephony Service Provider) environments. 

Three models NC-MG900 / NC-MG916 / NC-MG1000 locate on the interface of PSTN / TDM and IP network, providing signaling transformation between SS7, ISDN PRI, R2/CAS, Q.SIG, V5.2, DPNSS signaling and SIP Protocol, as well as perform the conversion between PSTN / TDM and VoIP SIP.

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

NC-MG916: it is 2U device that has four E1 cards with 16 E1 /T1 ports. 

·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)

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.

·Echo Cancellation: G.168 128 ms Network Echo Canceller;

·FAX Support T38 and pass through;

·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, DTMF, Caller ID, and Flexible input/output Gain Control.

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

Capacity:

1U device NC-MG900 has two slots for E1 card, 2U device NC-MG916 has four slots for E1 card, and 3.5U device NC-MG1000 has thirteen slots for E1 card;

All three models use the same kind of E1 card.

Specification of per E1 card: 

-One independent IP address;

-1 to 4 E1 / T1 ports;

-2 Ethernet ports (10/100/1000M Base-T) and 1 console ports (RS232 PORT);

-128 G.711 Channels;

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

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

Physical Specification:

NC-MG900 Serial:

Following diagrams show different applications of VoIP Media Gateway. All NC-MG900 in the following diagrams can be replaced by NC-MG916.

Application 1: From E1 to SIP

Application 2: ITSP to PSTN

Application 3: IP Call Center or IP Dispatching System

Application 4: Building Network for Enterprise (Between Headquaters and Branches)

Example Application 5: V5.2 to SIP in TATA in India