User's Manual 188 Document #: LTRT-27055
Mediant 1000B Gateway & E-SBC
To configure echo cancellation:
1. Configure line echo cancellation:
a. Open the Voice Settings page (Setup menu > Signaling & Media tab > Media
folder > Voice Settings).
Figure 14-2: Enabling Echo Cancellation
b. From the 'Echo Canceller' drop-down list (EnableEchoCanceller), select Enable.
c. Open the Media Settings page (Setup menu > Signaling & Media tab > Media
folder > Media Settings).
d. From the 'Max Echo Canceller Length' drop-down list (MaxEchoCancellerLength),
select the maximum echo path delay (tail length) for the echo canceller.
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
14.2 Fax and Modem Capabilities
This section describes the device's fax and modem capabilities and corresponding
configuration. The fax and modem configuration is done in the Fax/Modem/CID Settings
page.
Note:
• Unless otherwise specified, the configuration parameters mentioned in this section
are available on this page.
• Some SIP parameters override these fax and modem parameters. For example,
the IsFaxUsed parameter and V.152 parameters in Section ''V.152 Support'' on
page 198.
• For a detailed description of the parameters appearing on this page, see
''Configuration Parameters Reference'' on page 1273.