Appendix D - Glossary
Administration Manual (H.323 Version)
AT-VP504E FXO
100
T.38 An ITU-T Recommendation for Real-time fax over IP. T.38 addresses
IP fax transmissions for IP-enabled fax devices and fax gateways,
defining the translation of T.30 fax signals and Internet Fax Protocols
(IFP) packets.
Telephony The science of translating sound into electrical signals, transmitting
them, and then converting them back into sound.
Terminal Device capable of sending or receiving data over a data
communications channel.
Transmission Control
Protocol/Internet
Protocol (TCP/IP)
A suite of communications protocols developed by the Department of
Defense in the 1970s that connects hosts on the Internet and provides
the standards for transmitting data over networks.
Trivial File Transfer
Protocol (TFTP)
A simplified version of FTP that transfers files but does not provide
password protection, provide directory capability, or allow transmission
of multiple files with one command.
User Datagram
Protocol (UDP)
An efficient but unreliable, connectionless protocol that is layered over
IP, as is TCP. Application programs are needed to supplement the
protocol to provide error processing and retransmission of data. UDP
is an OSI layer 4 protocol.
Voice Over IP (VoIP) The technology used to transmit voice conversations over a data
network using the Internet Protocol. Such data network may be the
Internet or a corporate Intranet.
Wide Area Network
(WAN)
A large (geographically dispersed) network, usually constructed with
serial lines, that covers a large geographic area. A WAN connects
LANs using transmission lines provided by a common carrier.
Summary of Contents for AT-VP504E FXS
Page 1: ...AT VP504E FXO H 323 Administration Manual PN 990 11592 10 Rev C VoIPTalk...
Page 16: ...Chapter 1 Introducing the AT VP504E FXO Administration Manual H 323 Version AT VP504E FXO 8...
Page 76: ...Chapter 5 Software Upgrade Administration Manual H 323 Version AT VP504E FXO 68...
Page 100: ...Appendix C Gatekeeper Registration Logic Administration Manual H 323 Version AT VP504E FXO 92...
Page 112: ...Index Administration Manual H 323 Version AT VP504E FXO 104...
