Telecom Abbreviations and Acronyms

1. 4 GIG
   4 Giga Intellectual Gadget
2. 4WE&M
   Four-Wire Ear and Mouth
3. 9
   Nine
4. 800
   Toll-Free Calling
5. 800
   Freephone
6. 802.11 HR
   High data Rate IEEE 802.11 Wireless LAN protocol
7. 802.x
   Series of LAN standards developed by IEEE
8. 911
   Emergency Services Phone Number
9. A-key
   Authentication Key
10. AARQ
    A-Associate Request
11. AATSR
    Advanced Along-Track Scanning Radiometer
12. ACVS
    Ameritech Customized Video Service
13. ADM 3X
    DS3 Add-Drop Multiplex
14. ADPC
    Automatic Data Processing Center
15. ADSRF
    Additional Device Savings Recovery Fee
16. ADTS-E
    Ameritech Digital Transport Service - Enhanced
17. AFSK
    Audio Frequency Shift Keying
18. AIS-L
    Alarm Indication Signal - Line
19. AIS-P
    Alarm Indication Signal - Path
20. AIS-V
    Alarm Indication Signal - Virtual

Last updated: October 28, 2020 — Total entries: 29,496