Adjusting Voice Interface Settings презентация

Cancellation Commands
Summary
Lesson Self-Check

levels
Input gain
Output attenuation

cancellation is enabled by default.
Echo cancellation coverage adjusts the size of the echo canceller.
Nonlinear echo cancellation shuts off any signal if near-end speech is detected.

Factors that affect voice quality include transmit and receive power levels, input gain, and output attenuation.
Input and output power levels must be configured to match the connected devices.
If the impedance is set incorrectly (if there is an impedance mismatch), a significant amount of echo is generated. Impedance settings must match the connecting equipment.
To eliminate echo on a voice call, you can configure echo cancellation using the echo-cancel enable, echo-cancel coverage, and non-linear commands.