System Description

TD 93025US
9 May 2019 / Ver. I 11
System Description
teleCARE IP
3.1.2 DHCP Server
The teleCARE IP network infrastructure requires a Dynamic Host Configuration Protocol (DHCP) server
to operate in reservation mode. In DHCP reservation mode the DHCP server assigns to each IP client a
permanent IP address.
3.1.3 UNITE
Ascom’s unified IP-based telecommunication environment (UNITE) serves to integrate the various
systems of the Ascom communications platform. UNITE offers system level services such as emergency
call, messaging, alarm handling, logging, fault handling, supervision, message routing, group
handling, number planning, and other mission critical services.
3.1.4 Messaging Services
Messaging services can be provided to a teleCARE IP system by adding Ascom messaging systems such
as IP-DECT, VoWiFi and System 900 to the system infrastructure. The NIRD Room Display serves as an
Ascom interactive messaging device which can be included as part of any teleCARE IP system. The
resulting integrated infrastructure provides the emergency call system with speech, interactive
messaging and alarm services.
3.1.5 System Management
The teleCARE IP system is centrally managed by the teleCARE IP System Manager (NISM). This is an
Elise module that contains the configurations of all teleCARE IP controllers that are part of the
teleCARE IP system. The NISM contains a Java based client web application. The client web application
is retrieved over the IP medium and runs inside a web browser.
3.1.6 Scalability
The scalability of teleCARE IP gives significant freedom when deciding the mix of system services. The
options range from basic emergency call, with light guidance and call forwarding, up to hunting
chain, attendant and staff assignment services.
3.1.7 Decentralized System Intelligence
The teleCARE IP system intelligence is decentralized and contained in teleCARE IP controllers that
connect as autonomous nodes to the IP medium. Each teleCARE IP controller has an interface with
UNITE. teleCARE IP controllers have a MAC and associated IP address giving them a unique identity at
room level in the teleCARE IP system.
3.1.8 Fail Safe
In case of failure of the IP network the teleCARE IP controllers will continue locally controlling the
connected peripherals. During an IP network failure all existing calls will continue to be locally
registered and signaled. As soon as the IP network is available to the teleCARE IP controller again the
decentrally stored calls will be fully restored.
3.1.9 ESPA and TAP
teleCARE IP can interface with an ESPA or TAP paging system via either of the RS232 com ports (COM 1
or COM 2) which are located on the rear side of the System Manager (NISM). Licences are required for
support of ESPA and TAP.