What is the phone works both ways?

The phrase "the phone works both ways" is an idiomatic expression often used to convey the idea of mutual responsibility in communication. It suggests that maintaining a relationship or keeping in touch requires effort from all parties involved, not just one person. When someone says "the phone works both ways," they are typically reminding someone that they, too, can make the effort to reach out, call, or communicate, rather than waiting for the other person to always initiate contact.

This expression underscores the importance of reciprocal communication and is commonly used in personal relationships, friendships, or even professional contexts to emphasize that both sides can and should take initiative in staying connected.