MERLIN LEGEND Communications System Release 6.1
System Manager’s Guide
555-661-118
Issue 1
August 1998
Putting the System to Work
Page 5-24Optimizing Your System
5
The CTI link allows calls on SA buttons to be monitored and controlled from client
workstation applications connected on a LAN to the server. The link can support
LAN workstations with analog multiline or MLX telephones, not single-line
telephones or analog membrane telephones. The link allows worktop applications
to control their associated telephones. QCC operator extensions cannot use CTI
link applications, but DLC operators can. Only one link is necessary, and it can
support up to 136 LAN clients, depending upon the types of extensions (analog or
MLX) and the volume of calls handled by the software applications.
Incoming calls on SA buttons may arrive through calling group distribution, PRI
routing by dial plan, DID (Direct Inward Dial) lines/trunks, or transfer from a DLC
or QCC operator or automated attendant.
NOTE:
A DLC only passes calling party information when it is not one of the
extensions using a CTI application. For details, see the
Feature Reference.
Figure 5–5. CTI Link Overview
Along with the features they provide on their own, applications can perform these
additional system functions through a CTI link:
■ Answering calls arriving on an SA button
■ Making calls from an SA button
■ Hanging up calls
■ Holding and retrieving a call on hold at the user’s extension
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CAUTION
POWER
ON
OFF
AG INPUT
FR
GND
Turn off
power before
inserting or
removing
modules
408 GS/LS
44GS or LS Outside Lines/
8 Analog Telephones (ATL)
408
008 MLX
8 MLX (Digital) Telephones
012
PROCESSOR
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Incoming/Outgoing
Calls
Public
Network
VMS/AA
MERLIN LEGEND
Release 5.0
LAN
CTI Link
Telephony Server
Client Desktop