Swisscom Top S324 ISDN User Manual page 112

Gigaset SX100isdn / englisch / A31008-X150-B102-1-7619 / glossary.fm / 13.10.2003
ISDN glossary
are not identical, and the phone number of C is displayed if C permits his phone
number to be displayed.
COLR (Connected line identification restriction)
The phone number of C is not displayed to A if C has set up COLR.
Conference switching
See "Three-way conference call"
CW (Call Waiting)
See "Call waiting"
D
D-channel
Control channel of an ISDN connection. See "Channel"
Dial preparation, see also "Block dial"
With some telephones with displays, you can first enter the phone number, check it,
and then dial it.
Digital telephone exchange
Computer controlled coupling fields provide a quick connection and the activation
of convenience features such as => enquiry call, => call waiting, => three-way
conference call, => call diversion, etc.
Direct call
Block the telephone for all phone numbers except for an individually entered
number. After picking up the handset and pressing any key, the connection to the
saved phone number is established. Ideal for children who cannot yet dial phone
numbers (baby call). Calling an emergency number is always possible.
Directory
Convenience feature of a telephone, which saves the name and phone number of
multiple parties. The phone numbers can be found and dialled quickly.
E
Electronic code lock
Personal identification number (=> PIN), used to protect a telephone from
unauthorised calling– only emergency calling is possible. Incoming calls can be
answered.
Enquiry call
You are making a call. Using the function "enquiry call" you interrupt the call
temporarily to establish a second external or internal connection to another party.
When you end the connection to this party immediately, this was an enquiry call. If
you switch back and forth between the first and second party, this is called toggling.
Exchange authorisation level
The various parties of the base telephone can be assigned different authorisation
levels. For example, while party A may only answer incoming calls, party B has can
make unlimited calls.
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