User`s guide

VoiceFinder AP1100 VoIP Gateway User’s Guide Version 1.1
AddPac Technology Co., Ltd. -
197 -
5.7.3.4.2. Default Value
Enabled for all interface types.
5.7.3.4.3. Command Mode
Voice-port configuration Mode
5.7.3.4.4. Usage Guideline
The echo-cancel command enables cancellation of voice that is sent out the
interface and is received back on the same interface; sound that is received
back in this manner is perceived by the listener as an echo. Disabling echo
cancellation might cause the remote side of a connection to hear an echo.
Because echo cancellation is an invasive process that can minimally degrade
voice quality, this command should be disabled if it is not needed.
The echo-cancel command does not affect the echo heard by the user on
the analog side of the connection.
There is no echo path for a 4-wire ear and mouth (E&M) interface. The echo
canceller should be disabled for this interface type.
5.7.3.4.5. Examples
The following example enables the echo cancellation feature on voice-port 3.
voice-port 3
no echo-cancel
5.7.3.5. input gain
To configure a specific input gain value, use the input gain voice-port
configuration command. Use the no form of this command to disable the
selected amount of inserted gain.