My phone is on Google Fi, and I use Messages for Web on the desktop to send and receive calls and texts. It generally works great.
I'm trying to get it to work with the tel: protocol, however, and running into issues. I can set the protocol handler to open MfW, even directly to the "new call" page by using https://messages.google.com/web/calls/new. But nothing obvious beyond that lets me specify to actually make a call to a number, or even pre-fill it in the new call box so I could just click the button.
Things I've tried:
https://messages.google.com/web/calls/new/<number>https://messages.google.com/web/calls/new?call=<number>https://messages.google.com/web/calls/new?dial=<number>https://messages.google.com/web/calls/new?to=<number>https://messages.google.com/web/calls/new?nc=<number>https://messages.google.com/web/calls/new?a=<number>
Worst-case, I can write a user script which will lurk on the messages app and sniff query parameters and then manually inject it into the DOM, but if there's a simple URL I can just stick in the protocol handling settings, I'd prefer that.
