Difference between revisions of "VoIP abbreviations"

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| PSTN || [[w:Public switched telephone network|Public Switched Telephone Network]]
 
| PSTN || [[w:Public switched telephone network|Public Switched Telephone Network]]
 
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| Q.931 || [[w:Q.931|Q.931 is the ITU standard ISDN connection control signalling protocol]]
 
| T1    || [[w:T-carrier|T1 carrier used to carry ISDN PRI between Telco and customer in USA/Japan]]             
 
| T1    || [[w:T-carrier|T1 carrier used to carry ISDN PRI between Telco and customer in USA/Japan]]             
 
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Revision as of 13:44, 15 January 2013

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