AVPP Overview
Issue 6, January 2011
13
1.6
Notes on System Configuration
In an IP system using subnets to differentiate telephony areas, each subnet must
have its own access points. Each subnet may require an AVPP to maintain voice
quality, but this depends on traffic volume and router capacity.
Multiple AVPP environments are those which have more than one AVPP.
AVPP models may not be combined within one subnet. More than one AVPP
model type may be used within a facility if installed on different subnets.
Wireless IP Telephones cannot roam with uninterrupted service between subnets
unless specific LAN components are present. Certain AP/Ethernet switch
combinations establish a layer-2 tunnel across subnets that enables the handsets
to roam. Without this capability, any call in progress will be dropped when the
user moves out of range and the handset must be power-cycled in order to
resume functionality in the new subnet area.
Please contact your service representative for detailed configuration information
when installing multiple AVPP models across several different subnets.
IP multicast addresses are used when the Avaya 3645 Wireless IP Telephone is
installed and PTT is enabled. PTT requires that multicasting be enabled on the
subnet used for the Avaya Wireless IP Telephones, AVPP, and Avaya Aura™
Communication Manager.
The Avaya Voice Priority Processor requires a Cat. 5 cable connection between its
network port and the Ethernet switch. The Avaya Voice Priority Processor auto-
negotiates to the type of port on the Ethernet switch and supports 10Base-T,
100Base-T, full-duplex and half-duplex port types.
Summary of Contents for 3641
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