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Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0
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Chapter 4 Using the Cisco Unified Wireless IP Phone 7921G Web Pages
Using System Settings
Background AC
Access Category information for each AC:
•
Admission Control Required—If yes, admission control must
be used prior to transmission using the access parameters
specific for this AC.
•
AIFSN—Number of slots after an SIFS duration a non-AP STA
should defer before invoking a backoff or starting a
transmission.
•
ECWMIN—Encodes value of CWmin in an exponent form to
provide the minimum amount of time in a random backoff.
•
ECWMAX—Encodes value of CWmax in an exponent form to
provide the maximum amount of time in a random backoff.
•
TXOpLimit—Interval of time in which a particular quality of
service (QoS) station has the right to initiate frame exchange
sequences onto the wireless medium.
Best Effort AC
Video AC
Voice AC
Channels
A list of supported channels (from the country IE).
Power
Maximum transmit power in dBm permitted for that channel.
Warning messages (in red at the
bottom)
The first AP in the list (reference AP) is compared against the
values recommended by Cisco, the differences are reported as
warnings, and warning messages appear at the bottom of this report.
All other APs are compared against the reference AP for
consistency.
Table 4-9
AP Details Report (continued)
Field
Description
