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-MG900-104: it is NC-MG900 that has one E1 card with 4 E1 /T1 ports and supports hot standby.
·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:
Item | NC-MG900 | NC-MG916 | NC-MG1000 |
Slot of PSU | Built-in | Built-in | 2 |
Slot for E1 / T1 card | 2 | 4 | 13 |
Qty of E1 / T1 Port | 1 to 8 | 1 to 16 | 1 to 52 |
VoIP Channel | 32 to 256 | 32 to 512 | 32 to 1664 |
SIP Subscribers [Optional] | 0 to 1000 | 0 to 2000 | 0 to 240000 |
SIP Compatibility | CISCO、Siemens、AVAYA、Huawei、ZTE, etc | ||
Input Voltage | DC -48V or AC 110-240V | DC -48V or AC 110-240V (Redundancy) | |
Power | 30W | 80W | 150W |
Dimension | 480mm*286mm*44mm (1U) | 488mm*260mm*88mm (2U) | 488mm*290mm*160mm (3.5U) |
Weight | 5KG | 5.5KG | 8KG |
Working Environment | 0℃～50℃, Less 80% | ||
Package Carton Size | 560mm*460mm*160mm | 600mm*360mm*200mm | 600mm*380mm*270mm |
NC-MG900 Serial:
NC-MG900-101 | NC-MG900-102 | NC-MG900-104 | NC-MG900-204 | NC-MG900-208 | |
Qty of E1 / T1 card | 1 | 1 | 1 | 2 | 2 |
Qty of E1 / T1 Port | 1 | 2 | 4 | 4 | 8 |
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
