Autofill Contacts by Typing Contact Name

The previous app (RingCentral Phone) would autofill contacts if you typed the contact's name. The new RingCentral app does not do that which more or less makes it pointless to have contacts. We are a high volume medical practice and don't have the time to manually enter each contact's fax number to send documents. This seriously impedes our workflow and general ability to run our practice efficiently and communicate effectively with other practitioners relative to patient care.