Polycom SIP 2.2.0 Administrator's Manual page 137

Attribute
tone.dtmf.level
tone.dtmf.onTime
tone.dtmf.offTime
tone.dtmf.chassis.masking
tone.dtmf.stim.pac.offHookOnly
Dual Tone Multi-Frequency <DTMF/>
This configuration attribute is defined as follows:
Permitted
Values
-33 to -3
positive
integer
positive
integer
0, 1
0, 1
Default Interpretation
-15 Level of the high frequency component of
the DTMF digit measured in dBm0; the
low frequency tone will be two dB lower.
50 When a sequence of DTMF tones is
played out automatically, this is the length
of time in milliseconds the tones will be
generated for; this is also the minimum
time the tone will be played for when
dialing manually (even if key press is
shorter).
50 When a sequence of DTMF tones is
played out automatically, this is the length
of time in milliseconds the phone will
pause between digits; this is also the
minimum inter-digit time when dialing
manually.
0 If set to 1, DTMF tones will be substituted
with a non-DTMF pacifier tone when
dialing in hands-free mode. This prevents
DTMF digits being broadcast to other
surrounding telephony devices or being
inadvertently transmitted in-band due to
local acoustic echo.
Note: tone.dtmf.chassis.masking should
only be enabled when tone.dtmf.viaRtp is
disabled.
0 Not currently used.
Configuration Files
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