Page 24 of 206 Overview
553-3001-304 Standard 3.00 September 2004
Wired Equivalent Privacy (WEP)
The WLAN Handsets 2210/2211 support Wired Equivalent Privacy (WEP)
as defined by the 802.11b specification. Nortel Networks offers the product
with both 40-bit and 128-bit encryption. WEP increases the security of the
wireless LAN to a level similar to a wired Ethernet LAN.
Push To Talk feature
The Push To Talk (PTT) feature allows the WLAN Handset 2211 to operate
in a PTT group-broadcast mode like a two-way radio, in addition to the
standard telephone operation.
Fore more information, refer to “Push To Talk” on page 110.
Loud noise environments
The WLAN Handsets 2210/2211 are designed to provide optimal voice
quality. However, when used in extremely loud noise environments, (for
example, close to working heavy machinery), degradation in call quality may
be experienced due to echo. Avoid using the WLAN Handsets 2210/2211 in
loud noise environments
WLAN IP Telephony Manager 2245
The WLAN IP Telephony Manager 2245 is a device that manages IP
telephony network traffic on the WLAN system. It is required to utilize the
11Mb/s maximum transmission speed available in the WLAN Handsets
2210/2211. The WLAN IP Telephony Manager 2245 acts as a proxy for the
wireless handsets. It provides a number of services including a QoS
mechanism, AP bandwidth management, and efficient RF link utilization.
The WLAN IP Telephony Manager 2245 works with the APs to provide
Quality of Service (QoS) on the WLAN. All voice packets are encapsulated
by the wireless handsets. The encapsulated voice packets to and from the
wireless handsets are handled by the WLAN IP Telephony Manager 2245 and
routed to and from a Call Server.
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