Application Interfaces; Csta Interface - BELGACOM Forum 523 Mounting And Commissioning Manual

Application
Interfaces
The Forum 523/524 communications system supports a series of
application interfaces which are used by external systems to
access functions of the communications system. Communication
between the external system and the Forum 523/524 communica-
tions system is principally transported via the LAN connection or
using the IP network protocol. The respective functions differ
depending on the application interface. The properties, function
and requirements of the various application interfaces are
explained in the following sections.

CSTA interface

Using the interface for "Computer Supported Telecommunications
Applications" (CSTA, phase 3 based on ECMA-269 and ECMA-
285 (BER) /ECMA-323 (XML), phase 2 based on ECMA-217 and
ECMA-218) external programs and applications can access serv-
ices of the Forum 523/524 communications system via network
connection. The CSTA interface provides an effective and univer-
sal connection option for Computer Telephony Integration (CTI)
applications, for example:
CTI functions for corded and cordless system terminals as well
as SIP terminals
Display paging and alarm messages on terminals
Remote activation using terminals, e. g. function and status
keys for device or building control.
interactive menu control using telephony terminals possible
Change administration information such as user groups, user
names and display languages
Calculating charges, wake-up calls, transparent keypad data
with codes, transmitting charges, time group query, message
calls and CTI for virtual subscribers, message calls and more.
CSTA interface

Application Interfaces

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