1.19 Integrated Services Digital Network (ISDN) Service Features
Feature Guide 227
Calling Line Identification
Presentation (CLIP)
Sends the caller's telephone number to the network when making a
call. The called party can see the number on his telephone display
before answering the call.
→ 1.19.1.2 Calling/Connected Line Identification Presentation (CLIP/
COLP)
Connected Line
Identification Presentation
(COLP)
Sends the telephone number of the answered party to the network
when answering a call. The caller can see the number on his
telephone display when the line is connected.
→ 1.19.1.2 Calling/Connected Line Identification Presentation (CLIP/
COLP)
Calling Line Identification
Restriction (CLIR)
Prevents the caller's CLI being presented to the called party by the
caller.
→ 1.19.1.2 Calling/Connected Line Identification Presentation (CLIP/
COLP)
Connected Line
Identification Restriction
(COLR)
Prevents COLP being sent by the answered party.
→ 1.19.1.2 Calling/Connected Line Identification Presentation (CLIP/
COLP)
Subaddressing (SUB) You may add digits after the telephone number. These digits will be
passed to ISDN terminal device.
User-to-user Signalling Type
1 (UUS-1)
Transmits a specified volume of the data through the D channel
between the ISDN terminal devices of different PBXs using UUS
types 1.
Advice of Charge (AOC) The PBX can receive the call charge information on ISDN lines from
the telephone company.
→ 1.19.1.3 Advice of Charge (AOC)
Call Forwarding (CF)—by
ISDN
Forwards an incoming call to another outside party using the ISDN
service of the telephone company.
→ 1.19.1.4 Call Forwarding (CF)—by ISDN (P-MP)
→ 1.19.1.5 Call Forwarding (CF)—by ISDN (P-P)
Call Hold (HOLD)—by ISDN Puts one ISDN call on hold.
→ 1.19.1.6 Call Hold (HOLD)—by ISDN
Call Transfer (CT)—by ISDN Transfers an ISDN call to an outside party. Call Transfer with
Announcement and Call Transfer without Announcement are
available.
→ 1.19.1.7 Call Transfer (CT)—by ISDN
Service Description & Reference