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The Digium 1TE134 single port PCI digital telephony card supports T1, E1, and both North America and European standard PRI (Primary rate ISDN). The TE134 uses state of the art technology to offer high performance in a cost effective package. The Digium TE134 is compatible with all versions of Asterisk using DAHDI. Asterisk and DAHDi are available for free from the Asterisk.org website.
The TE134 has the ability to create a seamless network, interconnecting traditional telephony systems with Voice over IP technologies.The TE134 card supports industry standard telephony protocols, including Primary Rate ISDN (both North American and Euro Standard) protocol families for voice. Both line-side and trunk-side interfaces are supported, as well as advanced call features. Octasic based hardware echo cancellation is built in to the cards, which removes the task of echo cancellation from the system's CPU and increases overall system performance and call quality.