Known Limitations; Polycom References - Cisco 1230AG - Aironet - Wireless Access Point Configuration Manual

*SpectraLink handset models 8020/8030 and their OEM derivates are verified compatible with
the WLAN hardware and software identified in the table. Throughout the remainder of this
document they will be referred to collectively as "SpectraLink Wireless Telephones" or
"handsets".
** ONLY Release 3.0 capable handsets support WPA2-Enterprise, Wi-Fi Standard QoS, and
CCXv4. Release 3.0 is not be available for Polycom handsets connecting to traditional PBXs.

Known Limitations

Polycom References

PN: 1725-36192-001_H
Cisco Wireless LAN Controllers with 1100, 1130, 1140, 1200, 1230, 1240, 1250 APs
 Push-to-talk (PTT) audio quality may be impaired on Cisco 1140
and 1250 802.11n APs with version 5.2.193.0 certified software.
All customers requiring PTT with these models should pilot test
this feature at their deployment site.
Heavy multicast, broadcast or push-to-talk (PTT) traffic may

impair voice quality.
Please refer to the Polycom Deploying Enterprise-Grade Wi-Fi Telephony
white paper. This document covers the security, coverage, capacity
and QoS considerations necessary for ensuring excellent voice quality
with enterprise Wi-Fi networks.
For more detailed information on wireless LAN layout, network
infrastructure, QoS, security and subnets, please see the Best Practices
Guide for Deploying SpectraLink 8020/8030 Wireless Telephones. This
document identifies issues and solutions based on Polycom's
extensive experience in enterprise-class Wi-Fi telephony. It provides
recommendations for ensuring that a network environment is
adequately optimized for use with SpectraLink 8020/8030 Wireless
Telephones.
These two white papers are available at:
http://www.polycom.com/products/voice/wireless_solutions/wifi
_communications/handsets/spectralink_8020_wireless.html
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