Audio Features
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out automatically.
Note: If the time interval between two DTMF digits is less than this value, two or more same DTMF digits
could be identified as one DTMF digit. This may cause the loss of one or more DTMF digits. For example,
2662 may be identified as 262. If so, you can modify the value of this parameter to a little lower than the
default value.
Permitted
Values
Integer from 0 to 700
Default 100
Parameter features.dtmf.volume <y0000000000xx>.cfg
Description It configures the volume of the DTMF tone (in db).
Permitted
Values
Integer from -33 to 0
Default -10
Parameter features.dtmf.min_interval <y0000000000xx>.cfg
Description
It configures the minimum inter-digit time (in milliseconds) between digits when a sequence of DTMF
tones is played out automatically.
Permitted
Values
Integer from 0 to 300
Default 50
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for T41P/T41S/T27G,
X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2/CP920, X=1.
[2]
If you change this parameter, the IP phone will reboot to make the change take effect.
Suppress DTMF Display
Suppress DTMF display allows IP phones to suppress the display of DTMF digits during an active call. DTMF digits are
displayed as “*” on the phone screen. Suppress DTMF display delay defines whether to display the DTMF digits for a
short period of time before displaying as “*”.
Topic
Suppress DTMF Display Configuration
Suppress DTMF Display Configuration
The following table lists the parameters you can use to configure the suppress DTMF display.
Parameter features.dtmf.hide <y0000000000xx>.cfg
Description It enables or disables the IP phone to suppress the display of DTMF digits during an active call.
Permitted
Values
0-Disabled
1-Enabled, the DTMF digits are displayed as asterisks.
Default 0
Web UI Features->General Information->Suppress DTMF Display
Parameter features.dtmf.hide_delay <y0000000000xx>.cfg
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