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APPENDIX C 3
C
NI / 5E Custom Appendix - Ordering National ISDN Lines
Definitions DN Directory number or telephone number
CA Call appearance of a telephone number
Call button
A button available for a voice call
CFD/CFB
Call forwards incoming calls to a preassigned
destination number when you “don’t answer”
or when your line is “busy;” set up at service
subscription
CFV Call forwards incoming calls to a number you
select; activated by user when needed
MSG
Message Waiting in your telephone company
provided voice mail
Conference
Allows you to make a three way call
Drop
Allows you to drop the last party added to a
three way call
Transfer
Allows you to transfer a call to another
telephone number
Hold
Allows you to put an active call on “hold”
CNI Provides the incoming calling line number if
available