Specifications

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Cisco Wireless LAN Controller Configuration Guide
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Chapter 4 Configuring Controller Settings
Configuring Voice and Video Parameters
• Load-based—To enable channel-based CAC. This is the default option.
• Static—To enable radio-based CAC.
Step 7 In the Max RF Bandwidth text box, enter the percentage of the maximum bandwidth allocated to clients
for voice applications on this radio band. Once the client reaches the value specified, the access point
rejects new calls on this radio band.
The range is 5 to 85%. The sum of max bandwidth% of voice and video should not exceed 85%.
The default is 75%.
Step 8 In the Reserved Roaming Bandwidth text box, enter the percentage of maximum allocated bandwidth
that is reserved for roaming voice clients. The controller reserves this bandwidth from the maximum
allocated bandwidth for roaming voice clients.
The range is 0 to 25%.
The default is 6%.
Step 9 To enable expedited bandwidth requests, select the Expedited Bandwidth check box. By default, this
text box is disabled.
Step 10 To enable SIP CAC support, select the SIP CAC Support check box. By default, SIP CAC this check
box is disabled.
Step 11 From the SIP Codec drop-down list, choose one of the following options to set the codec name. The
default value is G.711. The options are as follows:
• User Defined
• G.711
• G.729
Step 12 In the SIP Bandwidth (kbps) text box, enter the bandwidth in kilo bits per second.
The possible range is 8 to 64.
The default value is 64.
Note The SIP Bandwidth (kbps) text box is highlighted only when you select the SIP codec as User-Defined.
If you choose the SIP codec as G.711, the SIP Bandwidth (kbps) text box is set to 64. If you choose the
SIP codec as G.729, the SIP Bandwidth (kbps) text box is set to 8.
Step 13 In the SIP Voice Sample Interval (msecs) text box, enter the value for the sample interval.
Step 14 In the Maximum Calls text box, enter the maximum number of calls that can be made to this radio. The
maximum call limit includes both direct and roaming-in calls. If the maximum call limit is reached, new
or roaming-in calls will fail.
The possible range is 0 to 25.
The default value is 0, which indicates that there is no check for maximum call limit.
Note If SIP CAC is supported and the CAC method is static, the Maximum Possible Voice Calls and Maximum
Possible Roaming Reserved Calls fields appear.
Step 15 Select the Metrics Collection check box to collect Traffic Stream Metrics. By default, this box is
unselected. That is, the traffic stream metrics is not collected by default.
Step 16 Click Apply to commit your changes.