Idea

Everytime I log into my RingCentral iPhone app, I have to make sure that my default Caller ID number is selected. The first time I selected it, I expected the app to remember my selection. However, this is not the case. Prior to making a phone call, I always need to make sure the correct number is displayed for Caller ID. Is there a way to set the default Caller ID number and forget about it? Please advise and thanks.