Doorbell 3 no audio to devices

Two-way talk on Doorbell 3 receives audio from iPhone Xs, Ipad Pro, iMac and Macbook Air when answering ring. Doorbell 3 microphone records audio OK during normal recording operation. Doorbell 3 microphone does not operate/transmit audio to any device (iOS or MacOS) when attempting two-way talk.Cannot find any button/toggle icon on Ring App to activate or test Ring Doorbell microphone. Checked all settings to allow permissions and all set correctly. Installed and re-installed App but still no fix.Anyone else have this issue? Is there a solution? Can someone send me the solution if possible?.Lots of solutions available for the reverse of this problem on Ring web site and others.