Configuring Video Features
819
The SIP VP-T49G IP phones support transmission and reception of high quality video
images. The video is compatible with
- RTP Payload Format for H.264 Video,
- RTP Payload Format for ITU-T Rec. H.263 Video.
This section provides information for making configuration changes for the following
video-related features:
The SIP VP-T49G IP phones support USB camera for point-to-point video calls. Users can
place and answer video calls. The IP phones support transmission and reception of high
quality video images. To optimize video calling, you can configure camera settings as
required, such as white balance, exposure compensation and sharpness.
You need to know the following basic glossaries when configuring camera settings:
Glossary
Description
White Balance
People’s eyes are very good at judging what is white under
different light sources, but the camera often have great
difficulty with auto white balance - and can create unsightly
blue, orange, or even green color casts. Adjusting white
balance can help you remove unrealistic color casts and then
improve the images under a wider range of lighting conditions.
Sharpness
Describes the clarity of detail in a video image. The picture will
be sharp and clear, but moderate to heavy motion at low call
rates can cause some frames to be dropped.
Contrast
Contrast is the difference in luminance or color that makes an
object (or its representation in an image or display)
distinguishable.
Saturation
Describes how bright-colored of the video image. It is also
known as the purity of colour.
Noise
Reduction
Image noise is interference in the video signal that shows up as
grainy specks. Reduces the image noise can make the video
image clearer.
A 2D filter reduces the noise that can be found in low light
images. This type of filter is sometimes confused by motion,
Summary of Contents for CD860
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Page 45: ...Getting Started 23 For SIP T42G T41P T40P Desk Mount Method Wall Mount Method Optional ...
Page 47: ...Getting Started 25 For SIP T23P T23G Desk Mount Method Wall Mount Method Optional ...
Page 122: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series CP860 IP Phones 100 ...
Page 840: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series CP860 IP Phones 818 ...
Page 995: ...Appendix 973 ...