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Interworking Gateway

Interworking gateway provides , PSTN gateway, and trunking gateway.

GSM gateway is a multi-functional product used to effectively implement the smooth transition between PLMN (GSM) and VoIP network. It’s sea blue small appearance, beautiful and practical, easy-of-use to satisfied necessary of customers. It’s a cost-effective gateway for call termination (VoIP to GSM) and origination (GSM to VoIP). It is fully compatible with leading Soft-switch and SIPserver.

PLMN (GSM) Gateway Specifications

SIM card slot 4/8 SIM card slot
Ethernet port 1 LAN x 10/100M Base-TX RJ45
Management port 1 Console
Voice feature G.711A/U law, G.723.1, G.729A/B Silence suppression & detection Comfort noise generation(CNG) Voice activity detection(VAD) Echo cancellation(G.168) Adaptive (dynamic) jitter buffer Call progress tone generation Programmable gain control
Protocol Standard SIP V2.0 (RFC 3261,3262,3264) RTP/RTCP (RFC 1889,1890) Static IP, PPPoE, DHCP Network protocol: IP, TCP, UDP, TFTP, FTPS, RTP, RTCP, ARP, RARP, ICMP, Ping, NTP, SNTP, Http, DNS NAT traversal: static NAT, STUN ARP/RARP (RFC 826/903) VLAN 802.1p/802.1q DNS/DNS SRV (RFC 1706/RFC 2782)
Radio feature Frequency band: GSM 850/900/1800/1900 MHz DTMF mode: Signal/RFC2833 SMS/SMSC/USSD Open API interface Call duration limitation One/two stage dial-up, Hotline Polarity Reversal Custom IVR PIN modified Carrier select BCCH SIM card expansion supportive
Management and maintenance Web based configuration Configure backup/restore Support English and China language Firmware upgrade by TFTP Web login password modify Factory reset Output CDR/Tracking newsby syslog Ping and Tracer test on web Traffic statistics: TCP,UDP,RTP VoIP call statistics PSTN call statistics: ASR,ACD,PDD System log outputs CDR and tracing information Web-based Ping and Tracer tests Transmission protocol statistics: TCP, UDP, RTP VoIP call statistics PSTN call statistics: ASR,ACD,PDD
Physical properties Power: input:100-240V,50-60Hz,1.1A Max, output:12VDC,4.0A Power consumption:4G: 15w; 8G: 25w Temperature (operation): 0 ℃ to +45 ℃ (storage): -20 ℃ to +80 ℃ Operation Humidity: 10%-90% no condensation Dimensions (W/D/H): 255 mm x 220 mm x 30 mm Weight: 1.48 kg Color & material: blue, aluminum box
Packing content Gateway RJ-45 network cable Antenna User's manual CD

NC-MG320 features a compact structure, 1 U high, and can be mounted in a 19-inch standard cabinet or independently installed in a small equipment room. NC-MG320 supports 220 V AC power supply, adapting different conditions in an equipment room.

Supported Signaling Protocols

Item Specifications
Interface FXO/FXS/SIP/E1
E1 signaling ISDN PRI (ITU-T Q.931, Q.921)
SS7 ((ITU-T Q.700 series), 24 bits/14 bits PC, ISUP/TUP
V5.2 (ITU-T G.964, G.965)
VoIP protocol 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)
Audio encoding/decoding 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 protocol T30, T38, and pass through
Network protocol IP, NAT, ICMP, ARP, HTTP, BOOTP, FTPS, TFTP, DHCP, PPPOE, SNMP, Diff-Serv
Echo cancellation G.168 128ms

Physical Characteristics

Item Specifications
Input voltage 110-240V AC
Full-load Power 50 W
Dimensions (W×D×H) 482 mm x 286 mm x 44 mm (1U)
Weight 3.5 kg
Operating environment Temperature 0°C to 50°C
Relative humidity < 80%

Configuration Details

Configuration Capacity Physical Specifications
Configuration Type NC-MG320 analog gateway Configuration Capacity Port NC-MG320 analog gateway Port Quantity
FXO/FXS 4 to 32 PCM port 0 to 4
E1/T1 0 to 4 4 line RJ45 8
VOIP channel 32 to 128 Network port 1
Serial port 1
    Power port 1

TETRA gateways support the PTT signaling, AT commands, VOX, COR (carrier detect), channel change, PTT hotline, and rich specifications, applicable to various application scenarios and network sizes.

An ETS trunking gateway is 1 U high and supports 19-inch standard rack installation.

Technical Specifications

Item Specifications
Wireless ports DB37 ports, including an audio port, a PTT port, a COR port, and a five-wire serial port, each supporting four channels
Other ports
Power supply Rated voltage: 220 V voltage fluctuation: ±5% Frequency: 50 Hz±5% Wave form distortion rate of the phase-to-phase voltage: < 5%
Ground port Ground resistance: ≤ 1 ohm
Ethernet port 10/100M adaptive
Dimensions and operating environment
Dimensions (WxDxH) 440 mm x 328 mm x 45 mm
Weight 4 kg
Power consumption Rated power: 45 W
Operating environment Temperature: -10°C to +60°C Humidity: 10% to 90% non-condensing
Voice processing
Voice encoding G.711, G.723, G.729
Fax T.30, T.38
Call completion rate > 99%
Voice guarantee QoS echo suppression (G.165/G.168-2000), voice priority (TOS), DiffServ jitter buffer, comfort noise generation (CNG), and voice activity detection (VAD)
Average call setup delay < 100 ms
System availability Availability ≥ 99.999%
Mean time between failures > 20 years
System fault recovery time < 15 minutes
Standard compliance
Flame retardance UL94V-0 materials
Electrical safety UL 508, CSA C22.2/14; EN61010-1
EMC EN50082-1 (IEC801-2,3,4)CE
Surge protection IEEE-472 (ANSIC37.90)
Shock and vibration resistance IEC68-2-6