Wireless Modulation Technologies
Standard
802.11b
1 Adjusts dynamically when associating with an AP if the AP client setting is enabled.
Note
2 Advertised rates by the APs are used. If the Restricted Data Rates functionality is enabled in the Cisco
Unified Communications Manager Administration phone configuration, then the Traffic Stream Rate
Set IE (CCX V4) is used.
For more information about supported data rates, Tx power and Rx sensitivity for WLANs, see the Cisco
Unified IP Phone 9971 Wireless LAN Deployment Guide at this location:
http://www.cisco.com/en/US/products/ps10453/products_implementation_design_guides_list.html
Wireless Modulation Technologies
Wireless communications use the following modulation technologies for signaling:
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0 (SIP)
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Maximum Tx power
(See Note 1)
16 dBm
17 dBm
Data rate (See
Range
Note 2)
6 Mbps
709 ft (216 m)
9 Mbps
650 ft (198 m)
12 Mbps
623 ft (190 m)
18 Mbps
623 ft (190 m)
24 Mbps
623 ft (190 m)
36 Mbps
495 ft (151 m)
48 Mbps
413 ft (126 m)
54 Mbps
394 ft (120 m)
1 Mbps
1,010 ft (308 m)
2 Mbps
951 ft (290 m)
5.5 Mbps
919 ft (280 m)
11 Mbps
902 ft (275 m)
VoIP Wireless Network
Receiver sensitivity
-91 dBm
-90 dBm
-87 dBm
-86 dBm
-82 dBm
-80 dBm
-77 dBm
-76 dBm
-96 dBm
-85 dBm
-90 dBm
-87 dBm