Avaya 3641 Installation, Configuration And Administration page 14

Part A: Avaya Voice Priority Processor
Although a single Ethernet switch network is recommended, the Wireless IP Telephones
and the Avaya Voice Priority Processor can operate in larger, more complex networks,
including networks with multiple Ethernet switches, routers, VLANs and/or multiple
subnets. However, in such networks, it is possible for the Quality of Service (QoS) features
of the Avaya Voice Priority Processor to be compromised and voice quality may suffer. Any
network that consists of more than a single Ethernet switch should be thoroughly tested to
ensure that any quality issues are detected.
Note that the Avaya 3641/3645 Wireless IP Telephones cannot "roam" from one subnet
to another. If routers and multiple subnets are in use, the Wireless IP Telephones must
only use access points attached to a single subnet, or be powered off and back on to
switch to a different subnet.
Avaya IP Phone
The wired-LAN desk sets provided by Avaya for use with the Avaya Communication
Manager.
Router
A router is an optional component in the wired Ethernet LAN infrastructure that separates
a wired LAN into segments so that network traffic is restricted to those segments that are
directly involved in the communication. Installation of a network router is recommended
in larger networks, where there may be significant network traffic not related to the
wireless LAN. A router will isolate the wireless LAN from the associated wired LAN so that
they are not impacted by each others' traffic. The Avaya Voice Priority Processors, the
APs, and their associated Ethernet switch must all be on the same "side" of the router.
Administrative computer
An administrative computer is required for setup and maintenance of the Avaya Voice
Priority Processor. This computer may be temporarily connected directly to the component
or to the network; a dedicated computer is not required. Some installations use a laptop to
configure and maintain system components.
TFTP Server
Required in the system to distribute software to the Wireless IP Telephones. May be on a
different subnet than the Avaya Communication Manager, Avaya Voice Priority Processor,
APs and/or Wireless IP Telephones.
The Avaya Voice Priority Processor, all IP Wireless IP Telephones, and all access
points must be on the same subnet.
14 Avaya Voice Priority Processor, Avaya 3641/3645 Wireless IP Telephone, Handset Administration Tool