Polycom DOC2702A Flag Name Value and Description, Sipfreevideoresources, Sipfastupdateinterval

Appendix H-Setting the MCU for Integration Into Microsoft Environment

In some configurations, the following flags may require modifications when MS_ENVIRONMENT flag is set to YES:

Table H-2Additional Microsoft Environment Flags in the MCU MCMS_PARAMETERS_USER Tab

Flag Name	Value and Description
SIP_FREE_VIDEO_RESOURCES	Default value in Microsoft environment: NO.
	When set to NO, video resources that were allocated to
	participants remain allocated to the participants as long as
	they are connected to the conference even if the call was
	changed to audio only. The system does not allocate the
	resources to other participants ensuring that the participants
	have the appropriate resources in case they want to return to
	the video call.
	The system allocates the resources according to the
	participant’s endpoint capabilities, with a minimum of one CIF
	video resource.
	When this flag is set to YES, video ports are dynamically
	allocated or released according to the in the endpoint
	capabilities. For example, when an audio Only call is
	escalated to Video and vice versa or when the resolution is
	changed.
SIP_FAST_UPDATE_INTERVAL_	Default setting is 0 to prevent the MCU from automatically
ENV	sending an Intra request to all SIP endpoints.
	Enter n (where n is any number of seconds other than 0) to
	let the MCU automatically send an Intra request to all SIP
	endpoints every n seconds.
	It is recommended to set the flag to 0 and modify the
	frequency in which the request is sent at the endpoint level
	(as defined in the next flag).
SIP_FAST_UPDATE_INTERVAL_	Default setting is 0 to prevent the MCU from automatically
EP	sending an Intra request to Microsoft OC endpoints only,
	every 6 seconds.
	Enter the number of seconds in which the MCU automatically
	sends Intra requests to Microsoft OC endpoints only.

Setting the audio protocol for the Microsoft Client running on a single core PC

By default, Microsoft Office Communicator R2 or Lync Clients are connected to conferences using the G.722.1 audio algorithm. However, when these clients are hosted on single processor workstations, they may experience audio quality problems when this algorithm is used.

The System Flag FORCE_AUDIO_CODEC_FOR_MS_SINGLE_CORE is used to force the use of a specific Audio algorithm such as G.711 when a Microsoft Office Communicator R2 or Lync Client is detected as being hosted on a single core processor.

This flag can be set to:

•AUTO – No forcing occurs and the MCU negotiates a full set of Audio algorithm during capabilities exchange.

Polycom, Inc. H-47