Polycom 3150-16966-002, RMX 1000 manual 19-2

Chapter 19 - Appendix C: Glossary

Abbreviation/Term	Explanation
	A hardware device, or set of devices, that can call, and be
Endpoint	called by an MCU or another endpoint. For example, an
	endpoint can be a phone, a camera, or microphone
	connected to a PC or conferencing system.
	Far End Camera Control. The accompanying software in
FECC	certain cameras that enables a participant to control a
	remote camera.
Frame	A group of bits that make up an elementary block of video
	data for transmission by certain protocols.
Frame Rate	The number of video frames displayed on-screen during one
	second, measured in fps (frames per second).
G.711	ITU-T audio algorithme, 64Kbps, 3.4 kHz.
G.722	ITU-T audio algorithme, 64Kbps, 7 kHz.
G.728	ITU-T audio algorithme, 16 Kbps, 3.4 kHz.
	A type of server that performs two main functions: translates
Gatekeeper	LAN alias addresses of terminals and gateways to IP
	addresses and provides bandwidth management.
H.221	ITU-T standard that defines how to multiplex video, audio,
	control, and user data into one serial bit stream.
	ITU-T standard that defines simple multipoint control
H.230	systems procedures and describes network maintenance
	functions.
H.231	ITU-T standard that defines a set of MCU functions and
	operational requirements.
H.242	ITU-T standard that defines initiation of communications
	between systems and capabilities negotiation procedures.
	ITU-T standard that defines initiation of communications
H.243	between systems and capabilities negotiation procedures in
	multipoint conferences.
H.261	ITU-T standard that defines the Px64 video coding algorithm.
	ITU-T standard that provides improved compression and
H.263	quality of video images at a line rate lower than 384Kbps.
	This standard is not supported by all codecs.
	ITU-T standard that provides improved compression and
H.264	quality of video images in lower line rate connections and
	is part of the Highest Common mechanism in Video
	Switching conferences.
H.323	ITU-T standard for audio, video and data communications
	across IP-based (LAN) networks, including the Internet.
IP	Internet Protocol. The working protocol that forms the basis
	of the internet.
ITU-T Standard	International Telecommunications Union,
	Telecommunication Standardization Sector (formerly CCITT).
	An international group that produces official standards for

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