Installation guide

Dialogic
®
System Release 6.1 CompactPCI for Windows
®
Release Update 136
CSUMS_SmartScalingPartiesMinNum
Number: 0x3b04
Description: Specifies the number of talkers in a conference before scaling mode is enabled.
Values: 0 [default] to 0xff (255).
Guidelines: Audio conferencing provides a mechanism for audio summation of two or more
parties in a conference. There are three possible summing modes, which are controlled by
CSUMS parameters 0x3b03 and 0x3b04 in the configuration file.
By default, both active talker and scaling are enabled. When parameters 0x3b03 and 0x3b04 are
both set to their default values of 0, the default summing mode is Active Talker Summation mode,
which sums the three loudest parties. This is advantageous in large conferences. Since only the
three loudest parties are summed, background noise is reduced. However, there may be times with
small conferences when a different summation mode is preferable, for example, with soft speakers
or when the energy is too low (as with analog lines). The other summation modes are:
• Smart scaling mode - the summation of all parties, but scaling is only done on the ones who
are talking.
• No scaling - pure summation, can be used if you want full voice energy in the conference.
The settings for parameters 0x3b03 and 0x3b04 determine the summing mode as shown in the
following table.
To disable the Active Talker algorithm, set the parameter 0x3b03 to a value larger than the
maximum number of conferences per DSP; setting it to Conf_MaxTotalParties, or per board total
number of parties, will suffice, to a maximum of 255.
Even without Active Talker, scaling is also enabled by default. If not required, set the parameter
0x3b04 to a number larger than the maximum number of parties per DSP, and again using
Conf_MaxTotalParties will suffice, to a maximum of 255.
Update to Section 6.10, [lineAdmin.x] Parameters (Digital Voice)
In the guidelines for the SignalingType parameter, the note about NFAS D channel
backup (DCBU) supported only on ISDN NI-2 protocol is incorrect. DCBU is
supported on 4ESS, 5ESS, and NI-2.
Update to Section 6.21, [CHP] ISDN Protocol Variant Definitions (IPY00045267)
The values shown for the ProtocolType parameter are incorrect. The correct values
for the ProtocolType parameter are:
• 1: 4ESS
• 2: 5ESS
Parameter 0x3b03,
CSUMS_ActTalkerPartiesMinNum
Parameter 0x3b04,
CSUMS_SmartScalingPartiesMinNum
Summing Mode
0 (default 0 (default) Active Talker Detection
(default)
> Conf_MaxTotalParties 0 (default) Smart Scaling
> Conf_MaxTotalParties > Conf_MaxTotalParties No Scaling
Conf_MaxTotalParties is the setting for parameter 0x3926 in the configuration file, e.g.,
SetParm=0x3926,120 !Conf_MaxTotalParties