Polycom ViewStation manual Video Format

Chapter 2 Optional Configurations

Video Format:

•Select QCIF to transmit Quarter Common Interchange Format (176x144 resolution)

•Select FCIF to transmit Full CIF (352x288 resolution)

Video Protocol: Select a Video Standard

•H.261

•H.263

Note Far-end systems which support the H.263 standard can receive H.263. For far-end systems that support H.261 only, the ViewStation automatically adjusts to accommodate H.261 video.

Audio Mode: Select the preferred audio protocol for transmitting audio:

•G.728

•G.711u

•G.711A

•G.722-56

•G.722-48

•Off

Frame Rate: Select the preferred video frame rate for the broadcast transmission:

•30 fps

•15 fps

•10 fps

•7.5 fps

Note Broadcast configuration parameters should be set to accommodate the lowest common denominator of the systems that are receiving the broadcast. For example, if one system in the conference supports H.261 only, broadcast should be set to H.261 to ensure all systems participate in the conference.

Advanced Dialing: If RS-366 Dialing is enabled, the dialing prefixes are sent for calls from the ViewStation V.35 as numbers and

© Polycom, Inc. 61 ViewStation User Guide