User manual

Release 2.2 Digium, Inc. Page 14
Chapter 1
Overview
The Digium TE120 Series cards are T1/E1 capable cards that can handle
both voice and data. It supports industry standard protocols, including
Robbed Bit Signaling also known as CAS (Channel Associated
Signaling) and CCS (Common Channel Signaling), E&M (Digital
Emulation), Primary Rate ISDN (PRI), and several data modes (PPP,
HDLC, Cisco HDLC and frame relay). It is capable of running in E1, T1,
or J1 modes.
Designed to be fully compatible with existing software applications and
integrate fully with the Asterisk platform, the TE120 Series cards allow
many advanced call features.
Data Modes:
 Cisco HDLC
 HDLC
 PPP
 Multilink PPP
 Frame Relay