[Plugin: Contact Form 7] How Do you enter a Phone Number Field

Hello, I have a (little) idea.
See thic article:
https://contactform7.com/2009/11/26/selectable-recipient-with-pipes/

You can use this function to help user select
… Country code and Mobile company.

Mobile Phone number primitive:
(COUMTRY_CODE) [MOBILE_COMPANY] <YOUR_NUMBER>

See this picture:
https://cacoo.com/diagrams/oED82lNSzqKHZTMb-96418.png

And the code example – to select Mobile Company:

[select your-mobile-company “20|telenor”
“30|vodafone”
“60|t-mobile”]

I know, not a big idea, but better than nothing…

But I have no idea to Number validation… sorry.