Dial Tone Communications

We put the world at your finger tips!

We can upgrade your legacy system or install a new system to take advantage of SIP Trunking and VoIP calling. Bring your voice communications into the future with Dial Tone Communications!

Office Communication Systems

Digital Handsets



Comprehensive features, intuitive technology, sleek design, and a user-friendly interface, all come together in our innovative range of digital handsets ensuring a superior level of desktop usability and comfort.

To learn more about individual products in our digital handsets range, please select from the options below.





KX-DT521
Standard digital proprietary telephone, with 1 line back-lit display, 8 programmable keys and full duplex speakerphone. 

  • 1-line Graphical LCD with backlighting
  • 8 freely programmable function keys
  • Speaker Phone, handset and headset with full duplex

KX-DT543
Executive digital proprietary telephone, with 3 line back-lit display, 24 programmable keys and full duplex speakerphone. 

  • 3-line Graphical LCD with backlighting
  • 24 freely programmable function keys
  • EHS (Electronic Hook Switch) Speaker Phone, handset and headset with full duplex

KX-DT546
Premium digital proprietary telephone, with 6 line back-lit display, 24 programmable keys and full duplex speakerphone. 

  • 6-line Graphical LCD with backlighting
  • 24 freely programmable function keys
  • EHS (Electronic Hook Switch)
  • Speaker Phone, handset and headset with full duplex

KX-DT590
Easy Expansion for enhanced professional use

  • 48 DSS buttons, to be used in full flexibility, e.g.:
  • Direct Station Selection
  • Pre-Programmable One Touch Number dialing
  • Frequently used features
  • Busy Station Signalling
  • Direct connected to the KX-DT543/ KX-DT546
  • Maximum of 4 DSS console per phone can be connected