I'm really new to RC, sorry for the noob question.
My RC setup has both 3 digit and 4 digit extensions.
All my users currently just use the RC app. So "dialing" an extension is literally just choosing the person's account they are trying to contact.
I haven't used a physical desk phone on RingCentral. Let's say one user has extension 400 and another has extension 4000. If a person is trying to dial ext 4000 how does the phone/RC know they aren't trying 400? Do they need to dial # or something after?