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NOTE: This feature requires individual trunk buttons and auto-hold must be en-
abled.
COMPUTER TELEPHONY INTEGRATION (CTI)
Computer Telephone Integration (CTI) allows integration between the DCS 400si
and a personal computer system (PC) or a local area network (LAN). Caller ID or
ANI service is required for TAPI and TSAPI inbound call applications that use the
CID/ANI information to display computer records in conjunction with the presenta-
tion of the call to the station on the DCS 400si. TAPI and TSAPI are described
below.
TAPI
Jointly developed by Intel and Microsoft, TAPI (Telephony Applications Program-
ming Interface) delivers telephony features to the Windows desktop. TAPI is an
open application interface (OAI) protocol that supports First Party Call Control. A
Computer Telephony Module (CTM) is required to connect any keyset to a per-
sonal 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 fea-
tures and functionality of the 400si keyset are not changed.
TSAPI
Telephony Services Application Programming Interface (TSAPI) was developed by
Novell and AT&T and is the method of integrating the DCS 400si system to a com-
puter. TSAPI is a LAN based solution allowing computers to communicate directly
to the telephone system over the network system. This establishes a logical con-
nection rather than a physical connection between telephone and computer. It elimi-
nates the cost and administrative overhead of connecting every PC to a desktop
phone. It emphasizes third-party call control. (Example: calls can be tracked as
they are transferred, making it more suited to large office applications). TSAPI can
emulate first-party type call control for the 400si system, rather than from the tele-
phone as TAPI does. For example, to make a call the 400si, rather than the tele-
phone would dial the phone number, and the call would be then transferred to the
telephone. Novell Telephony Services 2.1 or higher specifies the data communica-
tions link between the Novell Netware file server running the Netware Telephony
Services NLM and the Samsung 400si. The physical connection from the Novell
Telephony server to the DCS 400si is an EIA-232 connection via a Samsung Serial
Interface Module (SIM).
CUSTOMER SET RELOCATION
Customer Set Relocation allows the customer to exchange or swap similar stations
in the 400si without wiring changes. All individual station assignments such as
trunk ring, station group, station COS, station speed dial, button appearances, call
forwarding, etc. will follow the Customer Set Relocation program.
4.1.9
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