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Zoom's ultrasonic pairing frequencies

Listener | Zoom Partner
Listener | Zoom Partner

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.