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AT%Q Line Signal Quality
The %Q command allows you to display the line signal quality.
This command is not applicable to V.21, V.23 or Bell 103 connections. A lower value indicates a
good quality connection.Values above 40 indicate a bad quality line signal and that you should
shift to a lower speed or use MNP10. Values below 30 indicate a good quality line signal.
Options
AT%Q Display line signal quality
Examples
• Type: AT%Q <E>
The line signal quality is displayed.