Instruction manual

Page 1930 of 3156 Loop Start Supervisory Trunks
553-3001-306 Standard 10.00 January 2002
Toll Definition Coincident
The toll definition allows any digit dialed as the first digit after the trunk
access code to define the call as a toll call (refer to LD 16).
Answer Supervision
An answer supervision signal received from the PSTN indicates the call is
established for the purpose of other features such as Call Detail Recording
(CDR) with answer supervision.
Disconnect Supervision
A disconnect supervision signal is sent when either the calling or called party
disconnects thereby freeing the trunk for other use.
Operating parameters
There are no operating parameters associated with this feature.
Feature interactions
Automatic Call Distribution
Since Loop Start Supervisory trunks do not provide disconnect supervision
on incoming calls it is not recommended that these trunks be used to auto
terminate on an Automatic Call Distribution (ACD) DN.
Call Detail Recording
Call Detail Recording (CDR) will use the toll definition digits as defined in a
trunk’s Route Data Block instead of using “0” or “1” to identify toll calls.
Call Detail Recording with Answer Supervision
For outgoing calls, the Answer Supervision received from the far end, on
Loop Start trunks, will determine when the “CDR with Answer Supervision”
feature will start recording the duration of the call.
Call Transfer
If an internal station user transfers an answered outgoing call to another
station in the ringing state, then any disconnect signal received from the far
end causes the trunk to be released and ringing of the internal set to stop. This
operation eliminates the problem of holding trunks and extensions due to lack
of supervision on Loop Start trunks.