Second incoming call alert?

I just took over admin of our Goto PBX. I'm familiar with other systems and this one seems to be well thought out and pretty easy to work with.

However, we have a call queue that has two people in it. One person for AM and one person for PM with no overlap. The idea of the call queue is so more incoming calls stack up behind the currently active call.

But there does not seem to be any way to tell that a second call is holding in the queue. I don't know if we have the right add-on maybe? When I create a call queue I can only make a "basic" one. So, I don't have access to the analytics, etc., I cannot set Supervisor or Agent roles, etc.

I just want to know if I am on the phone with Caller A, that Caller B is waiting on hold for me next - so I can cut my current call short or even answer the second call with the first going to hold?

Been wracking my brain on this and the best I can see from the documentation and videos is that without the add-on for analytics there's not a way to see this in the softphone software.

Any help or suggestions is appreciated. The only thing I can think of is to add extra extensions to each of us and point them at our cell phones, so we can see them ring if need be to know someone else is waiting.

At a loss here, this seems like normal functionality whether you are in a call queue or not to see that someone else is trying to call you as well.