IP Media Parameters

'IPMedia Detectors'

configure voip > media ipmedia > ipm-detectors-enable

[EnableDSPIPMDetectors]

Enables the device's DSP detectors for detection features such as AMD.

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[0] Disable (default)

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[1] Enable

Note:

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For the parameter to take effect, a device restart is required.

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The DSP Detectors feature is available only if the device is installed with a License Key that includes this feature. For installing a License Key, see License Key.

'Number of Media Channels'

configure voip > sbc settings > media-channels

[MediaChannels]

Defines the maximum number of DSP channels that can be used for features requiring DSP resources, for example, coder transcoding, DTMF transcoding, and answer machine detection (AMD). This parameter limits the use of DSP channels as specified in the device's License Key.

The default is -1, meaning that the maximum number of transcoding sessions is according to the License Key ('Transcoding Sessions'). For more information on the License Key, see License Key.

Note:

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To enable transcoding, you also need to configure the 'SBC Performance Profile' parameter to Optimized for Transcoding.

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Most SBC features that require DSP resources use two DSP channels. For example, if the device needs to perform coder transcoding between two endpoints where one uses the G.711 coder and the other G.729, and a maximum of 100 concurrent transcoding sessions need to be supported, the device uses 200 DSP channels. For this scenario, you would configure the parameter to 200.

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If you modify the parameter to a value that is less than the number of DSP channels currently being used by the device for active calls, the device allows these calls to continue (doesn't terminate them).

configure voip > media ip-media-settings > http-streaming-playback-requests-timeout

[HttpStreamingPlaybackRequestsTimeout].

Defines a timeout for no packets received (e.g., due to playback underruns) from the text-to-speech (TTS) service provider can now be configured.

Note: The parameter is for AudioCodes internal use only and is applicable only when the device operates with AudioCodes VoiceAI Connect Enterprise.

'Enable AGC'

configure voip > media ipmedia > agc-enable

[EnableAGC]

Global parameter enabling the AGC feature.

Enables the AGC mechanism. The AGC mechanism adjusts the level of the received signal to maintain a steady (configurable) volume level.

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[0] Disable (default)

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[1] Enable

For a description of AGC, see Automatic Gain Control (AGC).

'AGC Slope'

configure voip > media ipmedia > agc-gain-slope

[AGCGainSlope]

Determines the AGC convergence rate:

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[0] 0 = 0.25 dB/sec

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[1] 1 = 0.50 dB/sec

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[2] 2 = 0.75 dB/sec

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[3] 3 = 1.00 dB/sec (default)

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[4] 4 = 1.25 dB/sec

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[5] 5 = 1.50 dB/sec

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[6] 6 = 1.75 dB/sec

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[7] 7 = 2.00 dB/sec

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[8] 8 = 2.50 dB/sec

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[9] 9 = 3.00 dB/sec

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[10] 10 = 3.50 dB/sec

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[11] 11 = 4.00 dB/sec

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[12] 12 = 4.50 dB/sec

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[13] 13 = 5.00 dB/sec

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[14] 14 = 5.50 dB/sec

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[15] 15 = 6.00 dB/sec

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[16] 16 = 7.00 dB/sec

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[17] 17 = 8.00 dB/sec

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[18] 18 = 9.00 dB/sec

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[19] 19 = 10.00 dB/sec

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[20] 20 = 11.00 dB/sec

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[21] 21 = 12.00 dB/sec

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[22] 22 = 13.00 dB/sec

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[23] 23 = 14.00 dB/sec

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[24] 24 = 15.00 dB/sec

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[25] 25 = 20.00 dB/sec

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[26] 26 = 25.00 dB/sec

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[27] 27 = 30.00 dB/sec

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[28] 28 = 35.00 dB/sec

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[29] 29 = 40.00 dB/sec

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[30] 30 = 50.00 dB/sec

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[31] 31 = 70.00 dB/sec

'AGC Redirection'

configure voip > media ipmedia > agc-redirection

[AGCRedirection]

Determines the AGC direction.

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[0] 0 = (Default) AGC works on signals from the TDM side.

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[1] 1 = AGC works on signals from the IP side.

'AGC Target Energy'

configure voip > media ipmedia > agc-target-energy

[AGCTargetEnergy]

Defines the signal energy value (dBm) that the AGC attempts to attain.

The valid range is 0 to -63 dBm. The default is -19 dBm.

'AGC Minimum Gain'

configure voip > media ipmedia > agc-min-gain

[AGCMinGain]

Defines the minimum gain (in dB) by the AGC when activated.

The range is 0 to -31. The default is -20.

Note: For the parameter to take effect, a device restart is required.

AGC Maximum Gain

configure voip > media ipmedia > agc-max-gain

[AGCMaxGain]

Defines the maximum gain (in dB) by the AGC when activated.

The range is 0 to 18. The default is 15.

Note: For the parameter to take effect, a device restart is required.

'AGC Disable Fast Adaptation'

configure voip > media ipmedia > agc-disable-fast-adaptation

[AGCDisableFastAdaptation]

Enables the AGC Fast Adaptation mode.

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[0] Disable (default)

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[1] Enable

Note: For the parameter to take effect, a device restart is required.

'Answer Machine Detector Sensitivity Parameter Suite'

configure voip > media ipmedia > amd-sensitivity-parameter-suit

[AMDSensitivityParameterSuit]

Global parameter that defines the AMD Parameter Suite to use. You can also configure this feature per specific calls, using IP Profiles ('AMD Sensitivity Parameter Suite' parameter). For a detailed description of the parameter and for configuring this feature in the IP Profiles table, see Configuring IP Profiles.

Note: If you configure this feature for a specific IP Profile, the device ignores this global parameter for calls associated with the IP Profile.

'Answer Machine Detector Sensitivity Level'

configure voip > media ipmedia > amd-sensitivity-level

[AMDSensitivityLevel]

Global parameter that defines the AMD detection sensitivity level of the selected AMD Parameter Suite. You can also configure this feature per specific calls, using IP Profiles ('AMD Sensitivity Level' parameter). For a detailed description of the parameter and for configuring this feature in the IP Profiles table, see Configuring IP Profiles.

Note: If you configure this feature for a specific IP Profile, the device ignores this global parameter for calls associated with the IP Profile.

'AMD Sensitivity File'

[AMDSensitivityFileName]

Defines the name of the AMD Sensitivity file that contains the AMD Parameter Suites.

Note:

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This file must be in binary format (.dat). You can use the DConvert utility to convert the original file format from XML to .dat.

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You can upload this file using the Web interface (see Loading Auxiliary Files).

[AMDSensitivityFileUrl]

Defines the URL path to the AMD Sensitivity file for downloading from a remote server for the Automatic Update mechanism.

[AMDMinimumVoiceLength]

Defines the AMD minimum voice activity detection duration (in 5-ms units). Voice activity duration below this threshold is ignored and considered as non-voice.

The valid value range is 10 to 100. The default is 42 (i.e., 210 ms).

[AMDMaxGreetingTime]

Global parameter that defines the maximum duration that the device can take to detect a greeting message. You can also configure this feature per specific calls, using IP Profiles ('AMD Max Greeting Time' parameter). For a detailed description of the parameter and for configuring this feature in the IP Profiles table, see Configuring IP Profiles.

Note: If you configure this feature for a specific IP Profile, the device ignores this global parameter for calls associated with the IP Profile.

[AMDMaxPostGreetingSilenceTime]

Global parameter that defines the maximum duration of silence from after the greeting time is over, configured by [AMDMaxGreetingTime], until the device's AMD decision. You can also configure this feature per specific calls, using IP Profiles ('AMD Max Post Silence Greeting Time' parameter). For a detailed description of the parameter and for configuring this feature in the IP Profiles table, see Configuring IP Profiles.

Note: If you configure this feature for a specific IP Profile, the device ignores this global parameter for calls associated with the IP Profile.

configure voip > gateway digital settings > amd-timeout

[AMDTimeout]

Defines the timeout (in msec) between receiving Connect messages from the Tel side and sending AMD results.

The valid range is 1 to 30,000. The default is 2,000 (i.e., 2 seconds).

'AMD Beep Detection Mode'

configure voip > sip-definition settings > amd-beep-detection

[AMDBeepDetectionMode]

Defines the AMD beep detection mode. This mode detects the beeps played at the end of an answering machine message, by using the X-Detect header extension. The device sends a SIP INFO message containing the field values 'Type=AMD' and 'SubType=Beep'. This feature allows users of certain third-party, Application servers to leave a voice message after an answering machine plays the “beep”.

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[0] Disabled (default)

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[1] Start After AMD

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[2] Start Immediately

'Answer Machine Detector Beep Detection Timeout'

configure voip > media ipmedia > amd-beep-detection-timeout

[AMDBeepDetectionTimeout]

Defines the AMD beep detection timeout (i.e., the duration that the beep detector functions from when detection is initiated). This is used for detecting beeps at the end of an answering machine message.

The valid value is in units of 100 milliseconds, from 0 to 1638. The default is 200 (i.e., 20 seconds).

'Answer Machine Detector Beep Detection Sensitivity'

configure voip > media ipmedia > amd-beep-detection-sensitivity

[AMDBeepDetectionSensitivity]

Defines the AMD beep detection sensitivity for detecting beeps at the end of an answering machine message.

The valid value is 0 to 3, where 0 (default) is the least sensitive.

'AMD Mode'

configure voip > sip-definition settings > amd-mode

[AMDmode]

Global parameter that enables the device to disconnect the call upon detection of an answering machine.

The parameter is typically used when the device is deployed with VoiceAI Connect.