Fax And Modem Capabilities - AudioCodes Mediant 4000 SBC User Manual

User's Manual
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d. Open the IP Profiles table, and configure the 'Echo Canceller' parameter to
Acoustic (see Configuring IP Profiles on page 384).
e. Enable the Forced Transcoding feature (using the TranscodingMode parameter)
to allow the device to use DSP channels, which are required for acoustic echo
cancellation.
Note:
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 183.
•
For a detailed description of the parameters appearing on this page, see
''Configuration Parameters Reference'' on page 717.
Version 7.2
echo from the phone
'Min Reference Delay' (AcousticEchoSuppMinRefDelayx10ms) - defines the
acoustic echo suppressor minimum reference delay
'Max Reference Delay' (AcousticEchoSuppMaxRefDelayx10ms) - defines
the acoustic echo suppressor maximum reference delay
The following additional echo cancellation parameters are configurable only
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14. Media
Mediant 4000 SBC