Instruction manual

Page 1983 of 3156
Features and Services
Malicious Call Trace Idle
Contents
The following are the topics in this section:
Feature description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1983
Operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1983
Feature interactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1984
Feature packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1984
Feature implementation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1985
Task summary list . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1985
Feature operation . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1987
Feature description
The Malicious Call Trace (MCT) Idle signal instructs the Public Exchange/
Central Office to give the called party control of the call connection. If the
called party does not go on-hook at the end of a conversation, the connection
will be held through the Public Switched Telephone Network (PSTN)
indefinitely by means of a Multifrequency Compelled (MFC) Idle Call Trace
(IDCT) signal generated by the Meridian 1. This feature allows the automatic
call-tracing equipment in the PSTN to print out the appropriate details of the
calling party.
Operating parameters
Direct Inward Dialing (DID) calls which terminate on idle trunks result in the
IDLE signal being returned to the Central Office.