TEJ Digital Telephony Card
  • 1/2/4/8 ports of T1/E1/J1

  • Carrier-grade reliability

  • DMA data processing technology

Synway TEJ series digital telephony card is one of the robust hardware architectures to help software developers and service providers deliver cost effective open solutions, which leverages Synway’s patent-pending echo cancellation technology and decades of voice processing expertise to guarantee high audio quality and unmatched pricing points.


Compatible with Asterisk and other open source platform, the TEJ series is the robust hardware architecture to help software developers and service providers deliver cost effective open source solutions, including IP-PBX, gateway, IVR or other telephony applications. With 1, 2, 4 or 8 trunks (T1/E1/J1) per card, the telephony cards of the TEJ series support up to 720 voice calls in a single system in the most difficulty situations.


The TEJ series leverages Synway's patent-pending echo cancellation technology and decades of voice processing expertise to guarantee high audio quality and unmatched pricing points. Up to 128 ms, the Synway's echo canceller is on-board DSP-enabled and eliminates the need for expensive echo cancellation module. Supporting each channel on the full eight E1, T1 and J1 lines, the echo processing capability has been field-proven by some leading carrier labs and made Synway's product offerings the most cost effective and accountable worldwide.


Compatible with PCI or PCI-express interface, the TEJ series also introduces the latest DMA data processing technology to minimize the consumption of CPU capability, enabling developers to design the high-performance solutions featuring high robustness, scalability and interoperability in the demanding telecommunication environments.

  • Highlights
  • Specifications
  • Resources

Configurable T1/E1/J1

A kind of highly flexible hardware platform, TEJ series supports software configurable T1/E1/J1 interfaces. Selectable interfaces, T1/E1/J1 lines, are conveniently available in a single box to fit into complex and hybrid environments.


SuPerForm superior voice quality and echo cancellation

High-adjustability, original and complimentary SuPerForm can be "automatic adaptability" optimized by site environments for the unmatched voice enhancements(over 128ms echo tail), accurate DTMF/tone detection.


Carrier-grade reliability in any situation

TEJ series (digital telephony card) utilizes DMA technology, and the optimized DMA streams minimize the hitting to host CPU, enabling software developers and service providers to deliver highly flexible and scalable systems (up to 720ports).


Easy of use and intelligence

To design an array of open source applications conveniently, the TEJ series is optimized with rich features like friendly interface, automatic configuration and troubleshooting. 


OS and open sources IP-PBX supported

Support Unix, Linux and Solaris; compatible with Zaptel, and support a range of open source PBX systems, including Asterisk, Trixbox, Yate, Freeswitch, CallWeaver, Elastix and more.