Dialogic 1000Series, User Manual

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172 Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide
Parameter Reference
3.19.1.19 Jitter-Buffer Deletion Threshold (DMG2000 Only)
Description: When the jitter-buffer grows past this value, frames exceeding the threshold are
deleted immediately.
Allowed Values: 0 to 500 milliseconds
Default Value = 500 milliseconds
INI File Parameter Name = dspJbDeletionThresholdMs
3.19.1.20 Jitter-Buffer Frame Deletion Mode (DMG2000 Only)
Description: Determines how frames are deleted when the jitter-buffer adapts downward.
Allowed Values:
• Soft = More emphasis on audio quality, but maximum delay may be exceeded.
• Hard = Hard cap on the maximum delay, which may negatively impact audio quality.
Default Value = Soft
INI File Parameter Name = dspJbDeletionMode
3.19.1.21 TDM to TDM Media Always Clear Mode (DMG2000 Only)
Description: Enables media passing between TDM to TDM connections to be transmitted in clear
mode. This prevents the Media Gateway from encoding the media which allows analog modems,
digital modems and other analog devices to transmit data with bit integrity. However, this means
that no in-band call progress detection and generation are available. Most T1 CAS deployments
require in-band call progress detection so this setting should be Off for T1 CAS. Some ISDN
deployments may rely on in-band call progress detection and generation so this setting may need to
be Off in these cases.
Allowed Values:
• On
• Off
Default Value = Off
INI File Parameter Name = dspTdmToTdmAllClearMode