Samsung DCS Compact User Manual page 23

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CENTREX/PBX USE
CENTREX and PBX lines can be installed in lieu of central office trunks. CENTREX
and PBX feature access codes including the command for hook-flash (FLASH) can be
stored under one touch buttons. Toll restriction programming can ignore PBX or
CENTREX access codes so toll calls can be controlled when using these services.
CHAIN DIALING
Station users may manually dial additional digits following a speed dial call or chain
together as many speed dial numbers as are required.
CLASS OF SERVICE
The system allows a maximum of 30 station classes of service. Each class of service
can be customized in memory to allow or deny access to features and to define a
station's dialing class. Each station can be assigned different classes of service for
day and night operation.
COMMON BELL CONTROL
Each KSU provides a dry contact pair to control a customer-provided common bell or
common audible device. These contacts must be programmed as members of a sta-
tion group and may provide steady or interrupted closure.
COMPUTER TELEPHONY INTEGRATION (CTI)
Computer Telephone Integration (CTI) allows integration between the Prostar DCS
COMPACT and a personal computer system (PC). Caller ID service is required on
TAPI inbound call applications that use the CID information to display computer records
in conjunction with the presentation of the call to the station on the DCS COMPACT
Release 2 system. TAPI is described below.
TAPI
Jointly developed by Intel and Microsoft, TAPI (Telephony Applications Programming
Interface) delivers telephony features to the Windows desktop. TAPI is an open appli-
cation interface (OAI) protocol that supports First Party Call Control. A DCS Computer
Telephony Module (CTM) is required to connect any keyset to a personal computer
running Windows 3.1 or Windows 95. The number of CTMs that can be installed on a
system is only limited to the number of keyphones. The features and funcionality of the
DCS keyset are not changed.
CONFERENCE
Any combination of up to five parties (stations or outside lines) can be joined together
in an add-on conference. A station user may set up a conference with two or more
outside lines and then exit the conference leaving the outside lines connected in an
unsupervised (trunk to trunk) conference. The system allows five simultaneous con-
ferences.
4.1.7
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