DescraptionThe Digium 1TE133F has the ability to create a seamless network, interconnecting traditional telephony systems with Voice over IP technologies. The 1TE133F card supports industry standard telephony protocols, including Primary Rate ISDN (both North American and Euro Standard) protocol families for voice. FeaturesOne (1) RJ48 Interface Port Selectable T1, E1 or J1 Mode / Half-Length, Half-Height, Digital CardPCI-Express (1TE133F)PCI (1TE134F)Up to 24 (T1/J1) or 30 (E1) simultaneous callsBuilt-in 128ms Octasic DSP hardware echo cancellationBoth line-side and trunk-side interfaces are supported, as well as advanced call features. Octasic based hardware echo cancellation is built into the card, which removes the task of echo cancellation from the systems CPU and increases overall system performance and call quality. With the combination of Digium hardware and Asterisk software, numerous telephony configurations are possible. Show More Show Less
