Trunking Gateway

A trunking gateway is an interface between VoIP and PSTN. It is a device whereby the VoIP line and PSTN line are connected so that an end user can use PSTN phones to make a call over VoIP.

Protocols On E1/T1 side:SS7, PRI, QSIG, R2, V5.2; on IP side: SIP, MGCP, H.248

PDH system includes two major communication systems, ITU-T E1 system and ANSI T1 system.
The E1 system is dominant in Europe and some non-Europe countries. The T1 system is dominant in USA, Canada and Japan.
One major difference between them is :
E1 provides 2.048 Mbps bandwidth but T1 provides 1.544 Mbps bandwidth.

Trunking Gateways

Synway E1/T1 Trunk Gateway, SMG2000/SMG3000

Details
The SMG2000/3000 trunk gateway connects IP and hybrid networks via telephony and Ethernet links in a compact 1U form factor appliance. It also transforms media and signaling to support efficient and reliable voice, fax and multimedia sessions for mobile, fixed and cloud-based applications.
• Support 1/2/4/8//16 E1/T1 in 1U Space
• Support SIP and SS7/ISDN/R2 and More
• Telco-grade Redundancy & Dual Power Supply

Home page: http://www.synway.net
E-Mail: [email protected]
Skype ID: x.alex_huang.x
Telephone: +86 571 88860561

Roytel E1/T1 trunking gateway, RT-EIMS2002

Description
Roytel RT-EIMS2002 is a digital trunking gateway which connects PSTN/PBX to IP network. It has carrier-class performance and adapts slot insert frame which can be easily configured as requirements. It provides a maximum of 8 E1 ports in one single device.
RT-EIMS2002 offers 5 modes in one single device, 1/2/4/6/8 E1/T1 ports.
Features
• Carrier-class performance
• Optional and extendable interfaces boards
• 1.5U standard rack-mounted
• Web console
• Flexible call routing
• Support interconversion among multi-protocols, E1<–>IP, E1<—>E1, IP<–>IP