[TYPO3-english] tel: and sms: in addition to http, https, mailto, ...

[Andreas Becker]

Hi

how can we extend the link to external page with a "tel:" prefix for phone
numbers.

Right now a mailto ling is opening perfect a mailprogram on the desktop and
on mobile
The tel: and sms: should open the phone or messenger app.

Unfortunately TYPO3 provides only http: https mailto: but no tel: or sms:

Looking for tips, links how to extend this behaviour

Thanks

Andi