Telephone Abbreviations and Acronyms

  1. DTMF
    Dial-Tone Multi-Frequency
  2. DTMF
    Dial Tone Multi Frequency
  3. DTMF
    Dial Tone Multi-Frequency
  4. DTMF
    Dualhtone Multi-Frequency
  5. DXDP
    Digital Extra Device Port
  6. ECASS
    Electronically Controlled Automatic Switching System
  7. EHS
    Electric Hook Switch
  8. EISEC
    Enhanced Information Service for Emerxency Calls
  9. EPABX
    Electronic Private Automatic Branch Exchanges
  10. ER
    Earth Recall
  11. ERT
    Emergency Roadside Telephones
  12. ESI
    Estech Systems Inc
  13. FSGP
    Freethought Society of Greater Philadelphia
  14. HA
    Handset Amplifier
  15. HC
    Handset & Charger
  16. HC
    Handseh Charger
  17. HFAI
    Hands-Free Answer On Intercom
  18. HFAI
    Hands Free Answer On Intercom
  19. HFAI
    Hands Free Answer Intercom
  20. HS
    Headset for Snom

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