R2511-HP MSR Router Series Voice Command Reference(V5)

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frequency-tolerance value: Absolute frequency deviation (in percentage) when the DTMF detection
sensitivity level is set to medium. The value is in the range 1.0 to 5.0 and defaults to 2.0. The greater the
value, the higher the probability of false detection.
Examples
# Set the DTMF detection sensitivity level of voice subscriber line 1/0 to high.
<Sysname> system-view
[Sysname] subscriber-line 1/0
[Sysname-subscriber-line1/0] dtmf sensitivity-level high
dtmf time
Use dtmf time to configure the related time parameters of DTMF.
Use undo dtmf time to restore the default.
Syntax
dtmf time { interval | persist } milliseconds
undo dtmf time { interval | persist }
Default
The duration of DTMF tones and the interval between successive DTMF tones are both 120 milliseconds.
Views
Voice view
Default command level
2: System level
Parameters
persist: Specifies the duration of DTMF tones.
interval: Specifies the interval between successive DTMF tones.
milliseconds: Time in milliseconds, in the range of 50 to 500.
Usage guidelines
The configuration will apply to the whole interface once you carry out the command.
Examples
# Set the duration of DTMF tones to 200 milliseconds, and the interval between successive DTMF tones
to 300 milliseconds.
<Sysname> system-view
[Sysname] voice-setup
[Sysname-voice] dtmf time persist 200
[Sysname-voice] dtmf time interval 300
dtmf threshold
Use dtmf threshold to configure the sensitivity of DTMF digit detection.
Use undo dtmf threshold to restore the default.