Panasonic cordless phones (Penzance TR20)

I have 3 Panasonic cordless phones tested and working. 1 base unit works with all 3 phones. Also there is a spare charging unit. The phones are 2 different models but will sinc. with the base. You may need to go on line and look up "how to sinc. a cordless phone that has no DECT code with a base unit". I have looked this up and all the info. you need is there.