Nortel Meridian Meridian 1 Feature Description And Administration page 1751

• Active feature dial tone;
• Audible alarm.
The Operator call back enhancement allows Call Wait or Camp-On to Calling
Party Control and Called Party Control calls, and Attendant Break-in to
outgoing Calling Party Control calls and incoming Called Party Control calls.
The Camp-on and Break-in capabilities are not supported on ISDN BRI,
while the Call Wait capability is supported transparently for ISDN BRI.
The Special operator call back ringing enhancement provides operator
control of ringing cadences used in Toll Operator Call Back. This capability
is supported transparently for ISDN BRI.
The Malicious Call Trace enhancement allows a Meridian 1 to have Called
Party Control on incoming calls when the Malicious Call Trace (MCT)
feature is activated from a station, or when the Multifrequency Compelled
(MFC) Idle Call Trace (IDCT) signal is sent. This enhancement is not
provided on ISDN BRI.
The tones and announcement feature allows a howler tone to be given to
indicate that a 500/2500 terminal is off-hook. This capability is not
applicable to ISDN BRI terminals. This feature also provides new intercept
treatments upon the reception of some MFC signals. This capability is
supported transparently for ISDN BRI.
The active feature dial tone capability provides a distinctive dial tone to a
station going off hook when it has the Do Not Disturb (DND) or Make
Terminal Busy (MSB) feature active. This capability is not provided on
ISDN BRI.
The audible alarm feature provides an alarm to be sounded when an
emergency number has been dialed, or when the system is alerted of an
incoming malicious call. This capability is supported transparently for ISDN
BRI.
Part 4 - Ministry of Electricity and Industry (MOEI) features
This group of features is comprised of the following:
• KE Multifrequency Compelled Signaling;
• Flexible timers (dialtone, interdigit, and delayed answer);
International ISDN PRI Feature description and administration
ISDN BRI features Page 1751 of 1814