Glossary
©
Polycom, Inc.
169
ViewStation SP User Guide
OPQ
PTZ Pan/Tilt/Zoom.
Pan – rotating camera to the left or right.
Tile – rotating camera up or down.
Zoom – making image larger (telephoto) or
smaller (wide angle).
POTS or PSTN
Plain Old Telephone Service or Public
Switched Telephone Network. The basic
service that supplies a single analog
telephone unit with access to the public
switched network (via the local telephone
service provider). Refers to the worldwide
voice telephone network accessible to all
those with telephones and access privileges.
Private Branch eXchange (PBX)
A private telephone switching system,
usually located on a customer’s premises
with an attendant console. It is connected to
common group of lines from one or more
central offices to provide service to a number
of individual phones. Most PBXs allow
analog extensions on the system, allowing
access to special features such as
conferencing and transferring to analog
devices. A PBX connects to the telephone
lines supplied by the CO (Central Office).
QCIF
Quarter CIF. A quarter of the Common
Intermediate Format = 176 X 144 pixels
QoS
Quality of Service. This allows guaranteed
bandwidth and packet delivery between
endpoints over a packet network.
Содержание ViewStation SP
Страница 1: ...ViewStation SP User Guide ViewStation SP User Guide August 2001 Edition 3725 10755 002 ...
Страница 2: ......
Страница 8: ......
Страница 13: ... Polycom Inc xi ViewStation SP User Guide LMN 168 OPQ 169 RST 170 UVW 172 XYZ 173 ...
Страница 14: ...ViewStation SP User Guide xii www polycom com ...
Страница 18: ...Preface How To Use This Guide ViewStation SP User Guide xvi www polycom com ...
Страница 39: ...Chapter 1 Getting Started Polycom Inc 21 ViewStation SP User Guide Figure 1 21 Technical Support Help Screen ...
Страница 40: ...Chapter 1 Getting Started ViewStation SP User Guide 22 www polycom com ...
Страница 89: ...Chapter 2 Optional Configurations Polycom Inc 71 ViewStation SP User Guide Camera MIC 1 Version ...
Страница 90: ...Chapter 2 Optional Configurations ViewStation SP User Guide 72 www polycom com ...
Страница 112: ...Chapter 3 Using the ViewStation SP ViewStation SP User Guide 94 www polycom com ...
Страница 152: ...Chapter 5 System Information and Diagnostics ViewStation SP User Guide 134 www polycom com ...
Страница 176: ...Appendix C ISDN Information ViewStation SP User Guide 158 www polycom com ...
Страница 192: ...Glossary ViewStation SP User Guide 174 www polycom com ...