I was wondering about how to answer multiple calls at once. I may have difficulty explaining my issue, but here it goes. If I am on a call, and I see the phone ringing, I would like to put my call on hold or park and pick up the other line, or even be able to answer a call immediately after I end a call. There seems to be a delay that prohibits someone from picking up an incoming call once the ringing initiates. Is there any way to fix this? I am using a Polycom phone.