Normally you can not send text to a business landline. Your clients probably already did this many times. But the text goes to no where.
With WikiPro, you can send and receive text via your business landline.
Research shows SMS is the preferred way of clients to receive business update. Call is too disruptive, no one reads email. But people is on phone and they check SMS regularly.
With WikiPro web app or mobile app, you can send text to your clients any where, any time. Your clients do not need to install any mobile app.
There is one down side. Text costs money. If your clients are high frequent users, they can download the free WikiPro mobile App and send unlimited messages.