Advanced use

TANDBERG Videoconferencing System

Call quality

The Call Quality menu allows you to select the preferred quality of your call.

NOTE

DUE TO ACTIONS OR LIMITATIONS AT THE FAR END YOU MAY NOT ALWAYS BE ABLE TO ACHIEVE THE SELECTIONS YOU WANT.

Audio

Auto

Optimized audio quality depending on bandwidth.

High

High audio quality (G722) regardless of bandwidth.

Normal

Telephone quality (G728) regardless of bandwidth.

TIP

AUTO

1-4CHANNELS: G722.1 IS SELECTED.

5 OR MORE CHANNELS: G722 IS SELECTED.

Video*

Auto

Will select ‘Motion’ or ‘Sharpness’ depending on selected video source**.

Motion

Optimized for smooth motion video for all video inputs.

Sharpness

Optimized for sharp video for all video inputs.

Natural Video

Choose at what call quality level Interlaced video capabilities(iCIF) will be transmitted and enabled.

Auto

Interlaced video capabilities (iCIF) will be transmitted and enabled.

Off

Interlaced capabilities will not be transmitted. Useful if far end can not handle these capabilities.

H.264

Auto

Optimized video quality depending on what is available.

Off

H.264 video compression and decompression will not be used.

VGA Resolutions

Auto

VGA capabilities (VGA/SVGA/XGA) and SIF capabilities will be transmitted and enabled.

Off

VGA capabilities will not be transmitted. Useful if far end can not handle these capabilities.

TIP

SIF CAPABILITIES WILL ENABLE BETTER VIDEO QUALITY FOR NTSC SYSTEMS (SIF: 352X240, ISIF: 352X480, 4SIF: 704X480).

*- If option ‘Presenter’ is not installed or if H263 is not used, only CIF resolution will be used for all selections.

** - MainCam/Aux/VCR will select ‘Motion’. DocCam/PC will select ‘Sharpness’.

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TANDBERG 770, 990, 880 user manual Call quality