I have tried on 3 machines (Win 7) and 3 mobiles (Android) but only one combination shows up as COM3 in Hyperterminal.
My purpose is to send SMS via Serial port. I can send successfully from this one combination.
I want the others to work too. All mobiles connect to the machine and I can access the Internal and External drives.
By COM3 I mean COM1,2,3,4....