I'm new to this. I'm working with an office that is set to handle 4 calls at a time. If anybody is on the phone and a call comes in, it will not show on their 8851 phone. I verified all phones are added to the hunt group and logged into the hunt grou...

I'm sorry if this is in the wrong section. I'm new. I just want to know what setting to change if someone is telling me their 7975 and 8851 phones ring when already on a call. I checked line 1 and it shows flash only when phone is active.