Cadence Telephony manual 145, Cpc

	Glossary
CPC	Calling party control, also known as line supervision or wink disconnect signal-
	ling. All of these terms refer to the brief interruption in the battery current on an
	analog line, to indicate to connected equipment when a distant party has discon-
	nected. The CPC signal is required by the NexPath Telephony Server on
	inbound CO lines, to prevent calls that are in the auto-attendant or conferenced
	with other CO lines, from becoming connected indefinitely even though the out-
	side party has hung up. Most if not all central offices in the US provide this sig-
	nal, but some channel banks (analog line conversion from T1 digital lines) do
	not. NexPath does not recommend connecting the NexPath Telephony Server to
	channel bank or ISDN-to-analog equipment that does not provide the CPC sig-
	nal.
CPC Delay	The CPC delay is the time from when the caller actually has disconnected, to
	when the central office sends the CPC signal. The NexPath Telephony Server
	has a programmable CPC delay compensation adjustment, to compensate for this
	time delay, to eliminate long periods of silence at the end of voice mail messages.
	This can be programmed by the system administrator. See the System Adminis-
	tration Guide for details. The CPC delay compensation is merely a fixed amount
	of time that is chopped off of the end of all voice mail messages. If you find
	voice mail messages cut off at the end, the CPC delay compensation factor may
	have been set too large. Contact your system administrator.
Day mode	Each extension can be assigned to ring at a different phone or group of phones
	depending on whether the system is in the Day mode or Night Mode. Usually,
	systems are configured so that calls placed to the operator ring at the operator’s
	phone when the system is in Day mode, but ring over the overhead PA speaker
	when the system is in Night Mode. Individual extensions may be similarly con-
	figured. Day and night mode can be changed from the telephone keypad and
	from the web application TelOper, as described in the Users Manual.
Do Not Disturb mode	Individual extensions can be placed in either an “Accept Calls” mode or a “Do
	Not Disturb” mode. When an extension is in “Do Not Disturb” mode, calls
	placed to it will not ring the phone but instead will be sent directly to voice mail.
	If the extension is part of a call distribution group, incoming calls will be routed
	past any extensions which are in the “Do Not Disturb” mode and will go on to
	the next extension in the group.
extension number	The number an outside caller dials to get to a specific person or department.
	Extension numbers are also used to access outside lines, ring groups, PA speak-
	ers, voice mail boxes, speed dial numbers, park orbits, and automated attendants.

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