Zoom's ultrasonic pairing frequencies | Community
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Partner
September 26, 2023
Question

Zoom's ultrasonic pairing frequencies

  • September 26, 2023
  • 3 replies
  • 37 views

I'm trying to understand on what frequencies a Zoom Room is emitting its ultrasonic sound for wireless pairing with a soft client and i seem to be unable to find any public information on this.

In addition, is it the Zoom Room controller or appliance that would be emitting this sound?

 

I'm assuming it's in 20-22 kHz - similar to Cisco's Webex ultrasound pairing, but i'd love to have a bit more background information on it and a confirmation of sorts.

3 replies

Newcomer
March 9, 2026

Hello,

 

We would also like to know this information. We are considering a pilot program where another device would be set up using ultrasonic pairing. We imagine this could disrupt Zoom pairing if not done correctly.

Community Champion | Partner
March 11, 2026

Hi

I found this article, where someone spent some time analyzing how very similar function works. Basics are probably the same as with pairing. It seems really interesing and you will find your answers here:
https://ben.akrin.com/analyzing-ultrasonic-signals/

Ultrasonic signals used by Zoom Room seems to be within 19-20,2 kHz range.

ExpertswhoJohn
Community Super Champion | Customer
Community Super Champion | Customer
March 11, 2026

hi ​@wuj_east 

 

What an interesting question. Zoom does not make hardware, so its up to the device manufactuer to set this up. This is the only information I can find on the process or connecting.

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0068103

Please like and mark as the solution if this helps

All the best

 

John Drinkwater

Zoom Community Super Champion.

Zoom Developer Champion

Community Champions are not paid to provide this support and have no access to customer settings or data. I am not personally an employee of Zoom