9.1.16 ISDN (INTEGRATED SERVICES DIGITAL NETWORK) FEATURES
Service
Calling Line Identification Presentation (CLIP)
Connected Line
Identification
Presentation (COLP)
Calling Line Identification Restriction (CLIR)
Connected Line Identification Restriction (COLR)
Caller ID
Description
Sends the caller’s telephone number to the network when making a call. The called party can see the number on his or her telephone display before answering the call.
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.
Prevents the caller’s CLI from being presented to the called party.
Prevents COLP from being sent by the answered party.
The PBX receives Caller ID information, such as the caller’s name and telephone number, when a call is sent from the network. A display proprietary telephone (PT) user can see this information before answering the call.
Details in
→3.1.13 CLIP (Calling Line Identification Presentation)
→ 3.1.1 Caller ID
3.Private Networking Connection (QSIG)
Private networking with QSIG is possible using an ISDN line. Each ISDN port must be programmed so that each ISDN line has a "master" connection and a "slave" connection.
Conditions
•En bloc
The PBX sends all of dialed digits at once after the extension user completes dialing. The PBX recognizes the end of dialing as follows:
–the # key is pressed (programmable).
4.17
–the dialed number is a preprogrammed telephone number.
5.4
–the
4.4
•Extension Number
An extension number can be assigned to each ISDN port.
6.1
•Network Type
Each ISDN port can be set to the requirements of each country/area.
•L1 Active Mode and L2 Data Link Mode
The active mode of Layer 1 (L1) and the data link mode of Layer 2 (L2) can be selected individually (Permanent or Call by Call) for each ISDN port.
•TEI Assignment Mode
The Terminal Endpoint Identifier (TEI) assignment mode can be selected for each ISDN port.
•Bearer Mode
The bearer mode can be assigned for each ISDN port.
6.1
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