Avaya Communication Manager Administrator's Manual page 1096

Screen Reference
Multifrequency-Signaling-Related Parameters
data-verify
If Communication Manager receives this signal on DID calls and the terminating extension is not a data
extension, it sends intercept treatment. On DOD calls, this signal is sent to the CO if the CO requests
calling-category information and the originating extension is a data extension. This signal is used on both
DID and DOD calls.
drop
When this signal is received from the CO, Communication Manager starts the disconnect sequence and
drops the call.
maint-call
The CO sends a signal to indicate that a call is a maintenance call and Avaya Communication Manager
prepares the special maintenance call sequences for the CO.
normal
This signal indicates that the caller is a normal subscriber. If it is received on a DID call, the call is
terminated at the called extension. For an outgoing MF signaling call that uses group II signaling, this
signal is sent to the CO when the CO requests calling-category information and the originating extension
is a station. This signal is used in both DID and DOD calls.
send-intercept
If Communication Manager receives this signal from the CO on a DID call, it returns group B intercept
signal to the CO.
toll-auto
This signal is used in China. This signal indicates that a call is an automatic toll call. When the call
terminates at a busy station and a special busy signal is defined, the busy signal is sent to the CO. You can
define the special busy signal by choosing the option toll-busy on the incoming group B signals.
toll-operator
This signal, used in China, is treated as a normal subscriber signal. See the normal definition.
Group A signals
Group A signals are backward signals generated by the destination server/switch.
send-ani
The CO sends this signal to request calling-party category and sends additional signals to request ANI
digits. This signal is sent to the CO when Avaya Communication Manager requests ANI digits on DID
calls. This signal is used on both DOD and DID calls.
congestion
The CO sends this signal to indicate that it is experiencing network congestion. When Communication
Manager receives this signal on DOD calls, it drops the trunk and plays reorder tone to the calling party.
This signal is used on DOD calls.
1096 Administrator's Guide for Avaya Communication Manager
November 2003