Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing AT&T product.

I bought this phone/answering machine to replace my previous AT&T phone/answering machine, which lasted for 15 years before it stopped ringing. This phone is awful. The number buttons all stick unless you only push on the edge of the button. The sound quality for messages is very poor. My outgoing message sounds like I am underwater, and incoming messages are less clear than I would like.