Nortel VoIP Gateway, Configuration Manual

Page: 78 / 220

78 Configuring the Channel Settings
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Configure the Channel Settings according to the following table.
Table 13 Channel Settings
Parameter Description
Voice Volume Enter the Voice gain control in dB. This parameter sets the level for the transmitted signal.
You can enter a value from -31 to 31 dB.
The default value is -6 dB.
Input Gain Enter the PCM input gain in dB. This parameter sets the level for the received signal.
You can enter a value from -31 to 31 dB.
The default value is 0 dB.
Silence Suppression Select On to turn on Silence Suppression.
Select Off to turn off Silence Suppression.
The default value is Off.
Silence Suppression is a method conserving bandwidth on VoIP calls by not sending
packets when silence is detected.
Echo Canceller Select On to turn on Echo Cancellation.
Select Off to turn off Echo Cancellation.
The default value is On.
DTMF Transport Type Select DTMF Mute to erase the DTMF tones from voice stream and not relay the DTMF
to the remote end. DTMF will still be sent in out of band signaling if you select Yes for the
Enable DTMF over H.245 parameter on the Protocol Definition screen.
Select Proprietary DTMF Relay to erase the DTMF digits from voice stream and relay
the DTMF to the remote end.
Select DTMF Transparent to leave the DTMF tones in the voice stream.
Select RFC2833 Relay DTMF to erase the DTMF digits from voice stream and relay the
DTMF to the remote end using RFC 2833 standard.
The default value is DTMF Mute.
MF Transport Type Select Mute MF to erase the MF tones from the voice stream and not relay the MF to the
remote end.
Select Relay MF to erase the MF tones from the voice stream and relay the MF to the
remote end.
Select Transparent MF to leave the MF tones in the voice stream.
The default is Relay MF.
DTMF Volume Enter the DTMF gain control value in dBms.
You can enter a value from -31 to 0 dBm.
The default value is -11 dBm.
CAS Transport Type Select the CAS Transport Type you want the VoIP Gateway to use.
You can select CAS Events Only or CAS RFC2833 Relay.
Fax Transport Mode Select the Fax Transport Mode that the VoIP Gateway uses.
You can select Transparent, Relay or Bypass.
The default value is Relay.
Caller ID Transport Type Select the Caller ID Transport Type you want the VoIP Gateway to use.
You can select Disable, Bypass or Mute.
Caller ID Type Select Bellcore for this option.
Bellcore is the Caller ID Type that is compatible with the Norstar KSU.