I have a ring group setup for my customer, it is setup as a ring all, it rings two extensions. if one person is on the phone, it rings the other phone, but if the person that is on the phone needs to answer the second call; they want to be able to place the call on hold and pickup the second call. the problem is when they place the call on hold their phone does not start ringing so they can pick it up. This is a basic receptionist job. I have been told by 3cx support that the only way to answer the second call is to use 3cxphone.