Voice over IP/Reference

AppendicesEdit

Appendix A: Glossary of TermsEdit

ATA Analog Telephone Adaptor
Broadband Using multiple transmissions simultaneously over a single medium.
Baseband Using a single transmission over a single medium. CAS Channel Associated Signaling
CCS Common Channel Signaling
DTMF Dual-Tone Multi-Frequency
DS0 64K Channel
DSL Digital Subscriber Line
E1 32 DS0 Channels
FXO Foreign eXchange Office
FXS Foreign eXchange Subscriber
IP Internet Protocol - IP is the common protocol, or language, used by all devices on the Internet to communicate regardless of vendor.
MGCP Media Gateway Control Protocol
NAT Network Address Translation - The translation of a Network (IP) Address to another address by a gateway or router device
PAT Port Address Translation - The translation of multiple inside IP addresses to a single IP address on the outside, used in typical home applications.
PBX Private Branch Exchange
PoE Power over Ethernet
POTS Plain Old Telephone System. See PSTN below.
PSTN Public Switched Telephone Network
Q.931 Layer 3 ISDN Signaling
Q.921 Layer 2 ISDN Signaling
RFC Request For Comments
RTCP Real-Time Control Protocol
RTP Real-Time Transport Protocol
SIP Session Initiation Protocol
T1 24 DS0 Channels