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VoIP gateway

E1/T1 Gateway SMG2000

  • Flexible and efficient VoIP Gateway Solution

With its scalable density and versatility, SMG2000 can help enable wireless and wireline service providers to add new Value Added Services (VAS) quickly, and provide a clear migration path to an all-IP network. It can scale up to 120 simultaneous IP sessions and at the same time provide media transcoding and impressive sessions per second. 

SMG2000 support voice densities ranging from 30 to 120 channels, call routing, call translation and IP transcoding in a single mini chassis for gateway operations. The integrated gateway functionality not only provides interworking between IP and TDM domains, but also automated failover from IP to TDM for outbound routing. These features help service providers looking to improve network and routing resiliency and lower TCO. These capabilities make the CMG2000 an excellent option for mobile VAS, SIP trunking, contact center and emergency service deployments, as well as for retail, wholesale, business, and enhanced Voice over IP (VoIP) services.

  • Any-to-Any Signaling and Multimedia Connectivity

SMG2000 provides any-to-any network connectivity through its ability to interwork multiple protocols used by telecommunications providers to deliver services to their retail, business and wholesale customers. It can provide interworking between ISDN, SS7, SIP formats.

SMG2000 also supports any-to-any media transcoding for popular voice codecs. T.38 and G.711 fax interworking and support for RTP, INBAND and SIPINFO method based tones and event handling complement the media transcoding capabilities to provide a high degree of flexibility to help deliver value added services economically.

  • User-friendly management and configuration toolkits

The Web graphical user interface (WebUI) is a real-time web toolkit to configure, monitor CMG2000. It allows operators to configure and perform real-time monitoring and maintenance. Flexible SIP and Protocols configuration enable services providers and enterprises to seamlessly connect in hybrid networks, Helping configure SIP, SIP trunking, SIP Mediation, PCM, SS7and ISDN, Routing and more; And a broad range of gateway toolkits also help gateway’s maintenance and software upgrading for Web UI, gateway services and firmware.

Product Model SMG 2000 series (1/2/4 E1/T1)

SMG2030   1*E1/T1 and 30 SIP channels 

SMG2060   2*E1/T1 and 60 SIP channels

SMG2120   4*E1/T1 and 120 SIP channels

Session Capacity

Max. 120 SIP channels

IP Interfaces

  • IP Dual redundant 2 – 100/1000 Base-T Ethernet for VoIP payload and signaling
  • TDM Signaling Protocols
  • ISDN/SS7 
  • SS7 ISUP
  • SS7 TCAP 
  • 16 SS7 links in standalone configuration

IP Protocols

  • Core SIP Specifications and Notable Extensions
  • RFC 3261 SIP Basic
  • RFC 3262 SIP PRACK
  • RFC 3265 SIP Subscribe/Notify

Voice Ability

  • Coder support: G.711A,G.711U, G.729 A/B,GSM, iLBC, RFC 2833,RF 3261,SIPINFO,INBOUND
  • Compliant with TCP/UDP, HTTP, ARP/RARP,DNS,NTP,TFTP,TELNET,STUN and more IP protocols
  • Echo cancellation: G.168 128 ms tail length
  • Voice activity detection and packet loss concealment

Comfort noise generation

  • T.38 real-time fax, T.38 – G.711 interworking
  • Digit transmission via RFC 2833 (SIP)
  • Hosted NAT
  • TDM Signaling Protocols
  • ISDN/SS7 
  • SS7 ISUP
  • SS7 TCAP
  • Resiliency
  • SS7 signaling: 1+1 active/standby redundancy
  • Redundant power supply(Dual power system)

Physical Dimensions

  • H*W*D  44(mm)*440(mm)*267(mm)
  • Weight   3.1kg


  • Estimated MTBF per Telcordia Method 1: With Dual Redundant AC or DC Power Supplies
  • Rear I/O Type 1 — T1/E1
  • NO PSTN Interface:150000 hours
  • 1*E1/T1 135000 hours
  • 2*E1/T1 120000 hours
  • 4*E1/T1 95000 hours

1-Year warranty

  • Datasheet