Cisco Unified Wireless IP Phone 7925G Series Deployment Guide
14
12 Mbps
551 ft (168 m)
-88 dBm
18 Mbps
545 ft (166 m)
-86 dBm
24 Mbps
512 ft (156 m)
-82 dBm
36 Mbps
420 ft (128 m)
-80 dBm
48 Mbps
322 ft (98 m)
-77 dBm
54 Mbps
289 ft (88 m)
-75 dBm
802.11g
Data Rate
Range
Receiver Sensitivity
Max Tx Power is 16 dBm 6 Mbps
709 ft (216 m)
-91 dBm
9 Mbps
650 ft (198 m)
-90 dBm
12 Mbps
623 ft (190 m)
-87 dBm
18 Mbps
623 ft (190 m)
-86 dBm
24 Mbps
623 ft (190 m)
-82 dBm
36 Mbps
495 ft (151 m)
-80 dBm
48 Mbps
413 ft (126 m)
-77 dBm
54 Mbps
394 ft (120 m)
-76 dBm
802.11b
Data Rate
Range
Receiver Sensitivity
Max Tx Power is 17 dBm 1 Mbps
1,010 ft (308 m)
-96 dBm
2 Mbps
951 ft (290 m)
-85 dBm
5.5 Mbps
919 ft (280 m)
-90 dBm
11 Mbps
902 ft (275 m)
-87 dBm
Note:
Receiver sensitivity is the minimum signal needed to decode a packet at a certain data rate.
See the “
Designing the Wireless LAN for Voice
” section for more information on signal requirements.
Bluetooth
The Cisco Unified Wireless IP Phone 7925G Series supports Bluetooth Class 2 technology allowing for wireless headset
communications.
Bluetooth enables low bandwidth wireless connections within a range of 30 feet, however it is recommended to keep the
Bluetooth device within 10 feet of the phone.
Up to five headsets can be connected, but only the last one connected is used as the default.
The Bluetooth device does not need to be within direct line-of-sight of the phone, but barriers, such as walls, doors, etc. can
potentially impact the quality.
Bluetooth utilizes the 2.4 GHz frequency just like 802.11b/g and many other devices (i.e. microwave ovens, cordless phones,
etc.), so the Bluetooth quality can potentially be interfered with due to using this unlicensed frequency.
Bluetooth Profiles
The Cisco Unified Wireless IP Phone 7925G Series supports both the Bluetooth Headset and Handsfree Profiles.
With a Bluetooth Headset Profile capable headset, the following call functions can be performed.
-Ring
