This is a scam support number claiming to be able to fix your printer, no matter what the brand is.
They will ask for the model of your printer and your computer as well as the OS. I would recommend saying Windows, as it moves the process along faster. They will ask for remote access so use your VM.
Websites with the TF number:
https://www.printertollfreenumber.com/contact-us
https://archive.storycorps.org/interviews/flashing-error-led-brother-printer-error-light-dial-817-442-6637/
How to fix canon error 5200? (817) 442-6637 - Issuu
https://showtoclients.com/ppt/printer-troubleshooting-guide/steps-to-resolve-epson-error-code-0xe5-dial-817-442-6637
https://www.pinterest.co.uk/pin/658510776763099802/
https://www.pinterest.co.uk/pin/658510776762711304/
How To Fix Brother Printer Error Ts-02- 817 442 6637 - Ourboox
https://www.progettokublai.net/progetti/a-complete-guide-to-fix-canon-printer-error-5b00-dial-817-442-6637/
Canon Printer Error 6000 Solution Here or Call (817) 442-6637
This is just from the first page of google, lets work on removing the number from them
Also features on BobRTC: https://bobrtc.tel/numbers/d/817-442-6637-tech-support-scam