Business phone?

Looking for a team business phone app for texting & calling customers over VoIP

It's for a small local delivery I'm trying to help out, I made their website but their struggling with phone service. Ideally drivers can sign in and out of their own account on their own phone

Tried Index (formerly sideline) and Ring central, but TCR got rejected (even using a separate non-cannabis business)

Please don't say Google Voice. It's also not an option