回复:you and your son should have separate phone lines
Many young adults don't have land phones, but cell phones. That is their life style. My son doesn’t need both land phone and cell phone.
We don't share phone line before until he gave me that used phones.
I don't think it is polite to return phones to him.
I have 2 phones and one fax machine with a phone at my home already. Now I have to have 5 phones. :(