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Configuration Files 333
Sample Media Gateway Configuration File (continued)
■ IPDiffServ — Sets the Differentiated Service Code Point value that is
assigned to RTP packets. This value is used by DiffServ compatible
routers to prioritize how packets are sent. The minimum and
maximum values are 0 and 63.
■ ControlIPDiffServ — Defines the value of the DiffServ field in the IP
header for SIP messages. Values range from 0 (zero, default) to 63.
■ DTMFVolume — The volume, specified in dBm, of DTMF tones sent to
the Public Telephone Switched Network (PSTN). Values range from -31
dBm to 0 dBm in 1 dBm steps. The default is -11 dBm.
■ InputGain — The gain control for received signals, specified in dB.
Values range from -32 dB to 31 dB. The default value is 0 dB. NOTE:
This parameter should not be changed except by users with an
advanced knowledge of the Media Gateway. Changing it affects other
Media Gateway functions.
■ VoiceVolume — The gain control for voice, specified in dB. Values
range from -32 dB to 31 dB. The default value is 0 (zero) dB.
■ EnableReversePolarity — Disable (0) or enable (1) the ability of the FXS
module to reverse the line polarity on call answer if the polarity
reversal service has been enabled. The FXS module releases the call
when a second polarity reversal signal is detected.
■ EnableCurrentDisconnect — Disable (0) or enable (1) the ability of the
FXO module to disconnect a call when the Current Disconnect signal is
detected. The default is 0 (disabled).
■ EnableDigitDelivery — Disable (0) or enable (1) the ability of the FXO
and FXS modules to send DTMF digits to the port after the line
becomes active (offhook for FXS or seized for FXO).
■ ECE — Disable (0) or enable (1) echo cancellation.