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4.1.2 Integrated Services Digital Network (ISDN) Service Features
Service
Three-party Conference
(3PTY)—by ISDN
Malicious Call
Identification (MCID)
Completion of Calls to
Busy Subscriber (CCBS)
3.
ISDN Centrex Service
An extension user can have access to the features of the ISDN Centrex Service of the telephone
company (e.g., Call Transfer). This is used by putting the current ISDN call on hold by sending a flash/
recall signal. This feature is enabled or disabled for each ISDN port.
→ 9.26 PBX Configuration—[1-1] Configuration—Slot—Port Property - BRI Port—ISDN CO—ISDN
Centrex
→ 9.27 PBX Configuration—[1-1] Configuration—Slot—Port Property - PRI Port—CO Setting—ISDN
Centrex
4.
Private Networking Connection (QSIG)
Private networking with QSIG is possible using an ISDN line. The QSIG mode, Master or Slave, can be
enabled on an ISDN port basis.
5.
ISDN Extension (→ 5.2.5.1 ISDN Extension)
An ISDN (BRI/PRI) port can be used for extension connection. While the extension connection is
enabled, ISDN terminal devices (e.g., ISDN telephone, G4 fax machine, PC) or a behind PBX can be
connected to the port.
When the ISDN port is in P-P configuration, one ISDN terminal device can be connected to the port.
When the ISDN port is in P-MP configuration, a maximum of eight ISDN terminal devices can be
connected to the port. However, only a maximum of two devices can be used simultaneously.
Conditions
•
Overlap/En bloc
For each ISDN port, either Overlap or En bloc can be selected as the dialling method for which the PBX
sends telephone numbers to the telephone company. The selected dialling method must be offered by the
telephone company. When "Overlap" is selected, the PBX sends each dialled digit individually.
When "En bloc" is selected, the PBX sends all of the dialled digits at once.
→ 9.26 PBX Configuration—[1-1] Configuration—Slot—Port Property - BRI Port—ISDN CO—ISDN
Outgoing Call Type
→ 9.27 PBX Configuration—[1-1] Configuration—Slot—Port Property - PRI Port—CO Setting—ISDN
Outgoing Call Type
In En bloc mode, the PBX recognises that the user is finished dialling when:
–
the # key is pressed (programmable).
→ 10.9 PBX Configuration—[2-9] System—System Options—Option 2—ISDN en Bloc Dial—[#] as
End of Dial for en Bloc mode
–
the dialled number is a preprogrammed telephone number.
316
Feature Manual
Description & Reference
Establishes a three-party conference call using the ISDN service
of the telephone company.
→ 4.1.2.8 Three-party Conference (3PTY)—by ISDN
An extension user can ask the telephone company to trace a
malicious caller. Information on the malicious call will be
received later on.
→ 4.1.2.9 Malicious Call Identification (MCID)
If a call is made to an outside party and the party is busy, an
extension can receive callback ringing when the called party
becomes free.
→ 4.1.2.10 Completion of Calls to Busy Subscriber (CCBS)
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