Can the reminder be linked to sendin an SMS


I have a client that requires to have an SMS sent to their customers mobile phones rather than an email sent.

I do have WP Plugins that link with Twilio but do not have the appointments/calendar functionality.

Really need the two brought together.

Guessing I am not the first to have asked about this as it is fairly common feature now with SME's.

What is your recommendation for the Appointments plugin?

Kind regards,