H3C Technologies H3C Intelligent Management Center - Manual (Page 102)

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12 VSM settings
The VSM Settings page allows you to view and modify VSM settings including the call history polling
interval, channel test interval, and channel test thresholds for evaluating channel quality.
Basic settings
Viewing or modifying the call history polling interval
1. Click the Service tab.
2. From the left navigation tree, select Voice Service Manager > VSM Settings > VSM Settings.
The VSM Settings page appears.
3. Click the Basic Settings tab.
4. View or modify the call history polling interval.
Call History Polling Interval (min)—Interval for updating historical call statistics, in minutes.
5. Click OK.
Test interval
Viewing or modifying the channel test interval
1. Click the Service tab.
2. From the left navigation tree, select Voice Service Manager > VSM Settings > VSM Settings.
The VSM Settings page appears.
3. Click the Test Interval tab.
4. View or modify the channel test interval.
Test Interval (Minutes)—Interval for testing the channel, in minutes. Options are 5, 10, 15, 30, and
60. The default value is 5.
5. Click OK. To restore the default value 5, click Default.
Test thresholds
The Test Thresholds page allows you to view and modify thresholds for evaluating channel quality.
Channel quality levels include High Quality, Middle Quality, Low Quality, and Fault. Channel quality is
evaluated by four test thresholds: Average Packet Loss Ratio, Maximum Jitter, Maximum Delay, and
MOS Value. VSM rates a channel based on these test thresholds and displays the channel quality level
on the Test Results list.