Adding a Channel to SalesIQ

Adding a Channel to SalesIQ

I have a client that currently uses Zoho CRM and Zoho Desk. They would like a live chat to place on their website that has a mobile app and chat bots (something like SalesIQ). However, they would also like to have all this work over SMS as well.

Does the SalesIQ API allow this? Can I add visitors without them being a visitor on a website?

Thanks!
Bryan Redeagle