VoIP abbreviations
From Teknologisk videncenter
| Abbr. | Meaning | ||
|---|---|---|---|
| A/D | Analog-to-digital converter | ||
| CO | Central Office or telephone exchange | ||
| D/A | Digital-to-analog converter | ||
| DTMF | Dual-tone multi-frequency signaling | ||
| E1 | E1 carrier used to carry ISDN PRI between Telco and customer in Europe | ||
| E.164 | E.164 is a international public telecommunication numbering plan used in the PSTN | ||
| ISDN | Integrated Services Digital Network | ||
| ISDN BRI | ISDN Basic Rate Interface. 2 B channels and 16 Kbps D channel | ||
| ISDN PRI | ISDN Primary Rate Interface. 30 B channels and 64 Kbps D channel in Europe | ||
| ITU | International Telecommunication Union | ||
| ITU-T | ITU Telecommunication Standardization Sector | ||
| PABX | Private automatic branch exchange - See PBX | ||
| PBX | Private branch exchange - A privat telephone exchange | ||
| POTS | Plain old telephone service | ||
| PSTN | Public Switched Telephone Network | ||
| Q.931 | Q.931 is the ITU standard ISDN connection control signalling protocol | T1 | T1 carrier used to carry ISDN PRI between Telco and customer in USA/Japan |
| Telco | Telephone company |