The 1TE436BF is a four (4) span digital T1/E1/J1/PRI PCI 3.3V/5.0V card and hardware echo cancellation (VPM128).
Digium's quad span digital interface cards support 96 (T1 / J1) or 120 (E1) connections to PSTN trunks over four spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the quad span digital cards provide the best value in digital connectivity.
Digium cards are compatible with all versions of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website. All cards include a five (5) year warranty and are eligible for Digium's Exceptional Satisfaction Program (ESP) risk-free Quality Guarantee.
Telephony Card Selector
Digium offers an online Telephony Card Selector to you help match the right card to your application.