Called and then hung up.

Rung out, no message left…..

Hung up once answered

Do not answer phone, wait until they leave a message, after that if you know the caller or if the caller is of your interests, then you can call back. make sure they leave their name, contact details and a short message for the reason of the call.

Rang out. Hung up. Didn’t leave a message

Didn't leave a message. Spam

Said hello twice then hung up