How can you add 1 more cordless phone to the two I have already?

Question

I bought a phone that has another cordless phone as a set. I would like to add 1 more cordless phone to the set. How do I do that?

Answer 1

If you buy an other extension there will have to match the base-station!

Answer 2

Look in the booklet that came w/your phones.  That should tell you.