Specifications

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Chapter 13: Topology – Network Services
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Alcatel-Lucent Enterprise Communication Solutions
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Forced on-net routing
The ARS/LCR application built into the Alcatel-Lucent OmniPCX Enterprise Communication Server
analyzes the public number dialed before setting up the call (ARS prefix). If the called party belongs
to the private network, the ARS application will automatically choose the least costly route (in this
case, a private route) and provide ABC feature transparency.
Break out (hop off routing)
When a user calls an external party, the number dialed is analyzed by the ARS/LCR application. Each
Alcatel-Lucent OmniPCX Enterprise Communication Server integrates the exact topology of the
private network at all times and can determine in real time the current route availability and traffic
load (information via the D-channel signaling). The Alcatel-Lucent OmniPCX Enterprise
Communication Server transparently selects a route over private infrastructures to make an external
call using the PSTN line with the lowest cost.
Multiple carrier selection
When a user calls an external party, the number dialed is analyzed by the ARS application. According
to the call direction, the best-priced carrier is selected.
The address information is modified to conform to the carrier’s numbering scheme (by adding,
removing, or converting digits), and the called number and converted number are stored in the call
detail record application.
When the lowest priced carrier for this call is not available (congested), the caller, if so entitled, is
diverted to another carrier offering a higher cost. The user is informed of a route change by a voice
message. They can hang up and try again later if the call is not urgent, or wait for the call to
overflow. At the end of the waiting queue, the call is diverted to the second carrier with the number
converted automatically as described above. The ARS application allows ten different carriers to be
selected successively.
3.2.10 Management of an ABC network
The ABC management tools are based on PC clients based on a server using Windows OS. They
provide a complete set of graphical user interface applications designed to facilitate day-to-day
management operations. The management workstations are connected through an Ethernet link to a
networked Communication Server. Dialog between the management workstation and the Alcatel-
Lucent OmniPCX Enterprise Communication Server is based on standard protocols: FTP,
CMIP/CMISE... SNMP is integrated in order to allow network supervision with other company
management tools.