There are two phone numbers in my home. Each one of these is connected to two sets. So that makes 4.
Plus, There is a cordless set lying unused. 5.
A complete all-in-one set, that doesn't work properly. 6.
A mini phone. 7.
Plus, there are two mobile phones. 9.
A mobile set was recently gifted to us. 10.
Two inter-communication ones but we don't use them. 12.