Glossary
ViewStation SP User Guide
166
www.polycom.com
ISP
Internet Service Provider.
IMUX
Inverse Multiplexer. Equipment that
combines 64Kbps channels and presents
them to the user's terminal equipment as if
they were a single larger bandwidth channel.
IP
Internet Protocol. An IP address is a number
that identifies a computer connected to the
Internet. Every computer that is connected to
the Internet must have unique IP address.
Currently, an IP address consists of four
sections separated by periods. Each section
contains an 8-bit value represented as a
number ranging from 0 to 255. The
allocation of these IP addresses follows a
two-level architecture that assigns IP
numbers to a network and the hosts on that
network.
IP Precedence
IP precedence tells downstream networking
equipment (mainly routers) to give priority to
audio and video data. It marks each audio
and video packet with a user defined
precedence (the default is 4). Only audio,
video and far end camera control packets
are marked. Control packets (such as
opening and closing of connections,
channels, etc.) are not marked with
precedence.
The user may specify any one of 8 levels
(0-7) of precedence with 0 signifying no
priority and 7 signifying the highest priority.
It is recommended by networking equipment
vendors to use 4 for multimedia data. By
default, IP precedence is disabled by most
routers and is not enabled on the Internet.
ISDN
Integrated Services Digital Network. Fully
digital telephony service, available at 128
Summary of Contents for ViewStation SP
Page 1: ...ViewStation SP User Guide ViewStation SP User Guide August 2001 Edition 3725 10755 002 ...
Page 2: ......
Page 8: ......
Page 13: ... Polycom Inc xi ViewStation SP User Guide LMN 168 OPQ 169 RST 170 UVW 172 XYZ 173 ...
Page 14: ...ViewStation SP User Guide xii www polycom com ...
Page 18: ...Preface How To Use This Guide ViewStation SP User Guide xvi www polycom com ...
Page 40: ...Chapter 1 Getting Started ViewStation SP User Guide 22 www polycom com ...
Page 90: ...Chapter 2 Optional Configurations ViewStation SP User Guide 72 www polycom com ...
Page 112: ...Chapter 3 Using the ViewStation SP ViewStation SP User Guide 94 www polycom com ...
Page 152: ...Chapter 5 System Information and Diagnostics ViewStation SP User Guide 134 www polycom com ...
Page 176: ...Appendix C ISDN Information ViewStation SP User Guide 158 www polycom com ...
Page 192: ...Glossary ViewStation SP User Guide 174 www polycom com ...