System Functions and Features as of I7.9
Features 307
syd-0200/3.0 – I7.9 – 11.2009
8. 2. 1. 2 ISDN supplementary services supported
In the following overview ISDN supplementary services are categorized as follows:
• Identification services
• Connection services
• Rerouting services
• Call charge services
• Other services
As a rule network interfaces are wired as a point-to-point connection (P-P). How-
ever, the point-to-multipoint (P-MP) connection type is also possible. Not all ISDN
supplementary services are provided by network providers on both connection
types or supported by the PBX.
Identification services
Tab. 129 Identification services
Name of the service Remark P-P P-MP
CLIP Calling Line Identification Presentation Displays the caller's number to the called
party
✓✓
CLIR Calling Line Identification Restriction Suppresses the display of the caller's
number to the called party
✓✓
COLP Connected Line Identification Presenta-
tion
Displays the called party's number to the
caller
✓✓
COLR Connected Line Identification Restric-
tion
Suppresses the display of the called
party's number to the caller
✓✓
DDI Direct Dialling In Direct dialling ✓ –
MCID Malicious Call Identification Records malicious calls ✓✓
MSN Multiple Subscriber Number Multiple subscriber number – ✓
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