Specifications

CONTENTS
4.1.8
COMPUTER TELEPHONY INTEGRATION (CTI)
Computer Telephony Integration (CTI) allows integration between the DCS 50si
and a personal computer system (PC) or a local area network (LAN). Caller ID
service is required on TAPI and TSAPI 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 50si system. 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
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 by the number of keyset ports. The
features and functionality of the keysets 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 50si 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 DCS 50si, rather than from the tele-
phone as TAPI does. For example, to make a call, the DCS 50si, rather than the
telephone would dial the phone number, and the call would then be transferred to
the telephone. Novell Telephony Services 2.1 or higher specifies the data commu-
nications link between the Novell Netware file server running the Netware Tele-
phony Services NLM and the Samsung DCS 50si. The physical connection from
the Novell Telephony server to the DCS 50si is an EIA-232 connection an I/O port
on the SMISC card.
CTI SYSTEM LINK
The DCS 50si has a system wide CTI link. This CTI link is provided from one of the
serial I/O ports on the SMISC and can be used with either the DCS TSAPI driver to
connect the system to a Novell LAN or the TAPI 2.0 driver to provide a CTI link to a
Windows NT server based LAN environment.
CUSTOMER SET RELOCATION
Customer Set Relocation allows the customer to exchange or swap similar stations
in the DCS 50si 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.