tenant notifcation via text for upcoming showings. Many of our tenants do not have/use email and are asking us to notify them of upcoming showings vi?

tenant notifcation via text for upcoming showings. Many of our tenants do not have/use email and are asking us to notify them of upcoming showings via text only. We understand currently any midday updates can be done via text but this is NOT sufficient. We need an option for ALL tenant notifications to be via text