Installation guide

Operafone IP Executive Installation Guide
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5. Configuring the Opera 20IP/4IP system for IP system phones
5.1 Auto discovery on the LAN
When the IP system phone is plugged into a LAN and powered up by Power-over-Ethernet or from the
mains via its plug-top adaptor, it auto-discovers the eircom Opera 20IP/4IP system on the LAN and is
automatically allocated an IP registration name and an IP registration PIN. It also stores the internal and
the public IP addresses of the Opera system.
It’s ready for use.
Note: The Opera 20IP/4IP system must be equipped with the appropriate software licenses if more than
eight IP system phones are connected.
5.2 Universal Plug and Play at the Advantage site
As soon as the Opera system is powered up it broadcasts a Universal Plug and Play (UPnP) request to
the Default Gateway address programmed in its IP Addresses table.
If the Opera system gets a positive response at the programmed Default Gateway address (default
192.168.1.254), it sets port forwarding at the Gateway, based on the settings in the Gateway
Configuration page (see below). It also queries the Gateway for its WAN IP address (public IP address).