Avaya Communication Manager Administrator's Manual page 793

Signaling Mode
This field selects the signaling method used for the DS1 link. This mode must match the method used on
the other end of the link, so work with your network services provider to determine the appropriate entry
for this field.
Valid entries
CAS (Channel
Associated
Signaling)
robbed-bit
isdn-pri
isdn-ext
common-chan
MAINTENANCE PARAMETERS
Alarm When PRI Endpoint Detached
Use this field for DS1 circuit packs connected to Roll-About Video equipment. This field appears only
when the
Connect
Valid entries
y/n
Administrator's Guide for Avaya Communication Manager
November 2003
Usage
Enter CAS for out-of band signaling with E-1 service. This setting
yields 30 64-kbps B-channels for voice or data transmission.
Channel 0 is used for framing while channel 16 carries signaling.
Enter robbed-bit for in-band signaling with T-1 service. This
setting yields 24 56-kbps B-channels for voice transmission.
Enter isdn-pri for either T-1 or E-1 ISDN service. This setting
supports both Facility Associated Signaling and Non-Facility
Associated Signaling.
Enter isdn-ext for either T-1 or E-1 ISDN service. This setting
supports only Non-Facility Associated Signaling.
Enter common-chan, for out-of-band signaling with T-1 service.
This setting yields 23 64-kbps B-channels for voice or data
transmission. Channel 24 is used for signaling.
field is line-side.
Usage
Enter y if you want the server running Avaya Communication
Manager to generate an alarm when the DS1 board detects a loss of
signal (for example, if the video equipment is disconnected).
Screen Reference
DS1 Circuit Pack
793