Hello,
Great gem! I'm liking it so far. I'm curious if short codes are supported? I'm using this for a soon to launch app and getting this error:

Twilio::REST::RequestError: The 'From' number + is not a valid phone number, shortcode, or alphanumeric sender ID.

When trying with 89045 format style of number as we have a short code we are trying to send messages from. Any thoughts or ideas here?

I'd posit that phone_with_plus(phone) tries to add a + to it.

If I add a '+89045' I get the + error. If I try to pass in '89045' I get an error that the from is blank.

Any thoughts or guidance here?

Thanks!