Polycom 8 manual Option, Description, Line Rate con’t

Chapter 9 - Conference Templates – Partial View Mode

Table 9-2: Advanced Conference Parameters - Partial View

Option	Description
Line Rate (con’t)	For more details regarding the Line Rate settings for
	Software CP conferences, see MGC Manager
	User’s Guide Volume II, Chapter 1.
	Note: The high line rate transmission is enabled with
	the standard video card (version 1.43 and up) or with
	the Video+ card. The line rate of incoming ISDN/
	H.323 calls can be automatically detected and the
	participant can be connected according to his/her
	capabilities, without prior setting of the endpoint’s
	line rate during conference setup. In such a case,
	the conference Line Rate is the maximum rate for
	the participant connection. For more details, see
	MGC Manager User’s Guide Volume II, Chapter 1.
Audio Alg.	Select the preferred audio algorithm. The available
	audio algorithms are: 8 (G.729/G.723.1), 16 (G.728/
	Siren7), 24 (Siren14/G.722.1/Siren7), 32 (Siren14/
	G.722.1/Siren7), 48 (Siren14/G.722/G.711), 56
	(G.722/G.711), or 56 (G.711).
	Siren 7 and Siren14 are Polycom proprietary audio
	algorithms. Siren14 can be used only if the MCU is
	configured to Wideband.
	Note: The system must include:
	• The appropriate Polycom settings to support
	Siren14
	• Siren14 is available with Audio+ cards
	Even if the conference is set to Siren14 if the
	endpoints do not connect in Siren14, the conference
	will use G.722.1 instead.
	In Video Switching conferences, all of the
	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 appropriate audio
	algorithm for all the participants in the following
	order: G.728, G.722, G.711.

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