Appendices
Appendix A: Glossary of Terms
| 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
|