R0106-HP MSR Router Series Voice Configuration Guide(V7)

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Enabling the nonlinear function of echo cancellation
After echo cancellation is enabled, nonlinear parts in the line can cause residual echo. The nonlinear
function (also called residual echo suppression) can remove the residual echo.
To enable the nonlinear function of echo cancellation:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter voice interface view.
subscriber-line line-number N/A
3. Enable the nonlinear function
of echo cancellation.
nlp-on
By default, this function is enabled.
This command is available only
after you configure the
echo-canceler enable command.
Displaying and maintaining analog voice
interfaces
Execute display commands in any view.
Task Command
Display information about analog voice
interfaces.
display voice subscriber-line
Analog voice interface configuration examples
Two-dial configuration example for the FXO interface
Network requirements
As shown in Figure 9, Router A and Router B are connected through an IP network and can reach each
other. The PBX is configured with a trunk number 07552003.
Configure the two routers to enable Telephone B to establish a call with Telephone A through two dials.
Figure 9 Network diagram
Configuration procedure
1. On Router A, configure the local number as 0101001 for POTS entity 1001, and bind FXS
interface line 2/1/1 to the POTS entity.
<RouterA> system-view
[RouterA] voice-setup