Digium, Inc.
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Chapter 1
Overview
The Digium TE120 Series cards are a T1/E1 capable card series created
for voice and data. They support industry standard protocols, including
Robbed Bit Signaling (also known as CAS or Channel Associated
Signaling), CCS (Common Channel Signaling), E&M, Primary Rate
ISDN (PRI), and several data modes (PPP, HDLC, Cisco HDLC, and
frame relay). The TE120 Series cards are 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
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