Cisco 9971 - Conference; Creating Conference Calls

Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide
33
Call Capacity
Design the network to accommodate the desired call capacity.
The Cisco Access Point can support up to 27 bi-directional voice streams for both 802.11a and 802.11g at a data rate of 24
Mbps or higher. To achieve this capacity, there must be minimal wireless LAN background traffic and radio frequency (RF)
utilization.
The number of calls may vary depending on the data rate, initial channel utilization, and the environment.
Max # of Streams
802.11 Mode
Data Rate
13
802.11a or 802.11g + Bluetooth Disabled
6 Mbps
20
802.11a or 802.11g + Bluetooth Disabled
12 Mbps
27
802.11a or 802.11g + Bluetooth Disabled
24-54 Mbps
When using Coexistence (802.11b/g + Bluetooth), call capacity is reduced to the following:
Max # of Streams
802.11 Mode
Data Rate
4
802.11b/g + Bluetooth Enabled
11, <12-54> Mbps
7
802.11g + Bluetooth Enabled
12, <18-54> Mbps
Note: It is highly recommended to use 802.11a if using Bluetooth.
Video Calls
Video calls over Wireless LAN will significantly reduce the potential call capacity.
Below lists the maximum number of video calls (single bi-directional voice and video stream) supported per access point /
channel for each video bit rate.
If there are two Cisco Unified IP Phone 9971s communicating to each other, then that is two bi-directional voice and video
streams.
Max # of
Video
Calls
802.11
Mode
802.11
Data Rate
Audio
Codec
Audio
Bit Rate
Video
Type
Video
Resolution
Video
Bit Rate
4-10
802.11a or
802.11g+
Bluetooth
Disabled
12-54 Mbps
G.722 /
G.711
64 Kbps
CIF
352 x 288
384 Kbps
3-7
802.11a or
802.11g+
Bluetooth
Disabled
12-54 Mbps
G.722 /
G.711
64 Kbps
360p
640 x 360
512 Kbps
2-5
802.11a or
802.11g +
Bluetooth
Disabled
12-54 Mbps
G.722 /
G.711
64 Kbps
VGA
640 x 480
1000 Kbps