Description
Digium’s dual span digital interface cards support 48 (T1 / J1) or 60 (E1) connections to PSTN trunks over two spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the dual span cards provide the best value in digital connectivity.
Features:
- Mfr. Part #: 1TE235F
- Connect two T1 or E1 trunks to an Asterisk based PBX system
- Add direct digital PSTN connectivity to Asterisk applications and solutions
- Create in-line call monitoring and recording solutions
- Up to 24 (T1/J1) or 30 (E1) simultaneous calls
- Supports T1, E1 and J1 physical interface connections
- Optional 128ms hardware echo cancellation module
- Protocol support includes: ISDN PRI, Robbed-Bit, CAS