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MGC Manager User’s Guide - Volume I
4-51
Audio Alg (cont.) Audio Algorithm 8 (G.729/G.723.1) is the most
compressed audio and 56 (G.711) is without audio
compression. If set to “Auto”, the system tries to
connect the participants using the best possible audio
algorithm for the conference.
Note:
• 8 (G.729/G.723.1) is available only for IP Only
conferences when the Audio+12/24, 24/48 or
48/96 is installed in the MCU.
• In Video Switching conferences, all participants
must use the same audio algorithm. Participants
with endpoints that do not support the algorithm
selected for the conference, are connected as
Secondary (Audio only).
• If the conference line rate is set to 2B or 128 Kbps,
to achieve the best audio and video quality, select
the most compressed audio algorithm for all
participants in the following order: G.728, G.722,
G.711. When Siren7 (16, 24 or 32 bit) is available,
select the audio algorithm in the following order:
Siren 7 (16), G.728, G.722 and G.711. Siren7 16 bit
and G.728 algorithms are interchangeable, and a
participant using either one is fully connected
when one of them is selected as the audio
algorithm.
• If the conference line rate is higher than 128 Kbps,
to achieve the best audio and video quality, select
the audio algorithm in the following order: G.722.1
(32), G.722.1 (24), G.722 / G711. When Siren7 (16,
24 or 32 bit) is available, select the audio algorithm
in the following order: G.722.1 (32), Siren7 (32),
G.722.1 (24), Siren7 (24), G.722, Siren7 (16),
G.711.
• Siren 14 should be used with conference rates
higher than 128 Kbps, only when all endpoints
support this algorithm.
Table 4-5: Conference Properties - Settings Parameters (Continued)
Option/Field Description