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What are the Different Frequencies of the Wireless/Cordless Devices?

When it comes to wireless communications, there are a few different frequencies you can be set to. Typically a headset will have one frequency it uses, not allowing you to switch to others. This is completely normal! Below is a breakdown of what headsets use which frequencies and what benefits or drawbacks each one could have.


Headsets at every frequency

900MHz - Used in many wireless systems, including cordless phones which can reduce headset range. (CS50 (DISCONTINUED!))


2.4GHz - Used in Bluetooth products, wireless network systems, and cordless phones. (CT12 (DISCONTINUED!), GN9120 (DISCONTINUED!))


1.9GHzB - Newly approved frequency band for North America dedicated to telecommunications. (CS55, CS55 Micro, CS70 (DISCONTINUED!), CS351/361 (DISCONTINUED!), OfficeRunner, DWPro1 and DWPro2, CS500 Series, AT&T Marathon, CT14 (DISCONTINUED!))


DECT - Digitally Enhanced Cordless Telecommunications provides improved digital security and sound quality. (Leitner Wireless headsets, OfficeRunner, DWPro1, and DWPro2, CS500 Series, AT&T Marathon, CT14 (DISCONTINUED!))


More on DECT

DECT is a digital wireless technology that originated in Europe, but is now being adopted increasingly worldwide, for cordless telephones, wireless offices, and even wireless telephone lines to the home.

The DECT standard makes use of several advanced digital radio techniques to achieve efficient use of the radio spectrum; it delivers high speech quality and security with low risk of radio interference and low power technology.

For more information, check out this website!


DECT Specifications

  • net bit rate: 32 kbit/s
  • frequency: 1920-1930MHz in the US
  • carriers: 10 (1880..1900 MHz)
  • timeslots: 2 x 12 (up and down stream)
  • channel allocation: dynamic
  • traffic density: 10000 Erlangs/km²

Hi, I'm Kyle!

I manage this blog. Feedback, comments, compliments, criticisms, or any other questions? I'll take them all!

Kyle Newgent wearing a Leitner office headset

Kyle Newgent
Headset Blogger