The procedure below describes how to configure echo cancellation using the Web
interface:
 To configure echo cancellation using the Web interface:
1. Open the Voice Settings page (Configuration tab > VoIP menu > Media submenu >
Voice Settings).
Figure 13-3: Enabling Echo Cancellation in Voice Settings Page
2. Set the 'Echo Canceller' field (EnableEchoCanceller) to Enable.
Note: The following additional echo cancellation parameters are configurable only
through the ini file:
• ECHybridLoss - defines the four-wire to two-wire worst-case Hybrid loss
• ECNLPMode - defines the echo cancellation Non-Linear Processing
(NLP) mode
• EchoCancellerAggressiveNLP - enables Aggressive NLP at the first 0.5
second of the call