1.20 Integrated Services Digital Network (ISDN) Service Features
1.20.1.2Calling/Connected Line Identification Presentation (CLIP/COLP)
Description
Calling Line Identification Presentation (CLIP):
The PBX can send a preprogrammed telephone number to the network when an extension user makes a call. The called party can see the number on his telephone display before answering the call.
Connected Line Identification Presentation (COLP):
The PBX sends a preprogrammed telephone number to the network when the extension user answers an incoming call. The caller can see the number of the answering party on his telephone display when the call is answered.
These features comply with the following European Telecommunication Standard (ETS) specifications:
ETS 300 092 Calling Line Identification Presentation (CLIP) supplementary service. ETS 300 097 Connected Line Identification Presentation (COLP) supplementary service.
[CLIP Example]
1)Dials
"87654321".
PBX
Caller
(CLIP/COLP No.: 12345678)
2) "12345678" is displayed.
ISDN
Called party
(CLIP/COLP No.: 87654321)
[COLP Example]
1) Dials
"111222333".
ISDN
Caller
3)"111222444"
is displayed.
PBX
Called party (CLIP/COLP No.: 111222333)
FWD, IRNA, etc.
Answering party (CLIP/COLP No.: 111222444)
2) Answers the call.
