Polycom 1500/1800/2000/4000 manual W448p Resolution, Sip

Video Protocols and Resolution Configuration for CP Conferencing

w448p Resolution

For improved interoperability with Tandberg MXP 990/3000 endpoints, the appropriate System Flag settings will force the Collaboration Server to send w448p (768x448 pixels) at 25fps as a replacement resolution for WSD15 (848x480) and SD15 (720x576 pixels).

Guidelines

●The w448p resolution is supported:

In CP mode.

At conference line rates of 384kbps and 512kbps.

With H.323, SIP, and ISDN endpoints.

H.323 endpoints must identify themselves as Tandberg MXP during capabilities exchange.

In all Video Layouts.

In 1x1 Layout:

When Video Clarity is Off, the Collaboration Server transmits the same resolution as it receives.

When Video Clarity is On, the Collaboration Server changes the transmitted resolution to w448p.

For more information see Video Clarity™.

●Resource consumption for the w448p resolution is the same as for SD and WSD resolutions.

The following table lists the video outputs from the Collaboration Server to the Tandberg Endpoints for both 16:9 Aspect Ratio when the w448p resolution is enabled.

Video Output to Tandberg Endpoints- Aspect Ratio 16:9

					Frame
	Video Quality			Resolution	Rate	Resolutio	Frame
			Line		fps	n	Rate fps
Network	Tandberg	Collaboration	Rate	Tandberg to		Collaboration Server
Environment		Server	Kbps	Collaboration Server		to Tandberg
H.323	Motion	Sharpness	384	512x288	30	768x448	25
SIP
			512	768x448	30	768x448	25
H.323	Sharpness	Sharpness	384	1024x576	15	768x448	25
SIP	*
			512	1024x576	15	768x448	25

*It is recommend to set the endpoint to Motion to ensure the transmission of the higher frame rates of 25fps/30fps to the Collaboration Server.

The following table list the video outputs from the Collaboration Server to the Tandberg Endpoints for 4:3 Aspect Ratio when the w448p resolution is enabled.

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