Tracking clicks on the phone number ONLY from mobile devices

This is, so to speak, an improved video. I already have a click tracking setup for the phone number on my channel, but in this video, I will show how to set up click tracking specifically from mobile devices.
Link to the video "Setting up click tracking for the phone number via GTM container": https://youtu.be/dPcnVtiLjZg
Link to the Variable "Mobile Device": https://docs.google.com/document/d/1AmxKITr3FO5RLT3oYaNdcB_Njbg20BOxsiAPiOcAjMg/edit?usp=sharing
Imagine a situation where your client does not yet have a call tracking system installed on their website, such as Binotel, Ringostat, etc., but calls need to be tracked. In this case, click tracking for the phone number will help you. In one of the previous videos, I showed how to set up click tracking for the phone number, but this setup works both when clicked from a phone and when clicked from computers and laptops.
I decided to show you how to improve this setup and make it so that the conversion of the click on the phone number only triggers when the visitor clicks on the phone number from a mobile device.

If you have any questions or need consultation — message me privately.