3Com MSR 50, MSR 30 manual Vqa dsp-monitor buffer-time, View Voice view Parameter, Range 180 to

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Table 684	DSCP values
Keyword	DSCP value in binary	DSCP value in decimal
cs3	011000	24
cs4	100000	32
cs5	101000	40
cs6	110000	48
cs7	111000	56
default	101110	46
ef	101110	46

Description Use the vqa dscp command to globally set the DSCP subfield in the ToS field in IP packets that carry the RTP stream or voice signaling.

Use the undo dscp media command to restore the default.

By default, the DSCP subfield is set to ef, namely, 101110.

n The function of this command is the same as the command used for setting DSCP in the “QoS” part of this manual. If two DSCP values are configured, the one configured in the “QoS” part takes priority.

Example # Set the DSCP value in the ToS field in the IP packets that carry voice signaling to af41.

<Sysname> system-view

[Sysname] voice-setup

[Sysname-voice] vqa dscp signal af41

vqa dsp-monitor buffer-time

Syntax	vqa dsp-monitor buffer-time time
	undo vqa dsp-monitor buffer-time
View	Voice view
Parameter	buffer-timetime: Duration in milliseconds of monitoring DSP buffer data, in the
	range 180 to 480.
Description	Use the vqa dsp-monitorbuffer-timecommand to set duration of monitoring
	DSP buffered data.
	Use the undo vqa dsp-monitorbuffer-timecommand to remove the setting.
	By default, DSP buffered data is not monitored.
	Duration greater than 240 milliseconds is recommended because too small a
	duration value will result in poor voice quality in the case of severe jitter.