Avaya IP Office 8.1 Product Description page 171

WiFi Multimedia (WMM) is a specification and certification program created by the WiFi Alliance, based upon the
Enhanced Distributed Channel Access (EDCA) mechanism defined in the 802.11e standard. Avaya handsets
support two QoS methods; the proprietary SpectraLink Voice Priority (SVP) developed to meet a gap which
existed before 802.11e ratification and the standards-based WiFi Alliance Wireless Multi-Media (WMM). SVP or
WMM-enabled APs and an AVPP are required for all Avaya wireless telephone installations, even if the WLAN is
being used only for voice. Without a method of prioritization for voice packets, the lack of a controlled delivery
method will result in poor audio quality, reduced capacity, poor handoffs and/or poor battery life even with only
voice devices on the network.
The latest Avaya 364x H.323 GA software does support 802.11e (WMM), AVPP, or CCXv4 for voice
prioritization/admission control and power management. It is important to note that the Access Point
infrastructure can only be configured with one of the three options (e.g. you cannot have WMM and AVPP
configured on the same AP).
current 364x model and vintage 361x/362x model Handsets (e.g. in these deployment the only option is
AVPP).
Even though the AVPP server is now an optional component for the 364x offering, the WLAN infrastructure
deployed in a WMM or CCXv4 implementation must still be Voice Interoperability for Enterprise Wireless (VIEW)
compliant per the following matrix:
documents/support/user/products/voice/VIEW_Certified_Products_Guide.pdf.
For example, the Avaya WLAN 8100 is now on the Polycom VIEW certified list with WMM (no AVPP server
required) for use with the 364x (this configuration guide is posted on the Polycom VIEW portal at:
supportdocs.polycom.com/PolycomService/support/global/documents/support/user/products/voice/1725-
36188-001_A.pdf).
Basic WMM implementation in access points does not include Unscheduled-Automatic Power Save Delivery (U-
APSD) and Call Admission Control (CAC), which are also defined in the 802.11e standard. Therefore, the AVPP
is required to ensure the timing and delivery of Avaya voice packets, which is critical as the user hands off
between APs and for improved battery life. The AVPP also provides call admission control and allows the
number of calls per AP to be configured.
Please also refer to the Deployment Guide for Avaya-Polycom VoWiFi Telephones available on
com.
Avaya Voice Priority Processors
The Avaya Voice Priority Processor (AVPP) is an Ethernet LAN appliance that works with access points to
provide Quality of Service (QoS) on the wireless LAN if the network is not VIEW compliant. All packets to and
from the wireless telephones pass through the AVPP and are encapsulated for prioritization as they are routed
to and from IP Office. AVPP is fully compliant with the IEEE 802.11a/b/g standards.
AVPP is required for QoS because the current IEEE 802.11a/b/g wireless LAN standards provide only limited
mechanism for differentiating audio packets from data packets. It also delivers quality of service by limiting the
number of telephones that are connected to one access point in order to avoid quality problems. In addition
AVPP ensures that the phone can run in energy-efficient mode when not in use. The following AVPPs are
available to meet customer needs:
AVPP100: Serves 80 calls simultaneously.
·
AVPP020: Serves 20 powered-on handsets.
·
AVPP010: Serves 10 powered-on handsets.
·
Wireless Access Points
When using the Avaya Wireless IP solution, customers can utilize wireless access points from various vendors.
The list of compatible wireless access points is large and constantly growing. Please visit
com/support/voice/wi-fi/view_certified.html
Benefits
Supports 802.11 a/b/g standards for WiFi networks converging voice and data over a single network.
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Seamless integration with IP Office.
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Excellent voice quality on converged wireless networks.
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Lightweight, durable handsets specifically designed for workplace use.
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Improved display, battery life, processor power all with lower costs.
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Increased range of AVPP's to address the needs of diverse construct sizes.
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Multitude of accessories are available:
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Product Description
IP Office 8.1
Also be aware that WMM or CCXv4 cannot be used if the customer has a mix of
http://supportdocs.polycom.com/PolycomService/support/global/
and select "WLAN Compatibility List" for the latest information.
© 2012 AVAYA All rights reserved.
http://
support.avaya.
http://www.polycom.
Page 171
Issue 26.k.- (16 August 2012)