Instruct: Classify a given review as either positive or negative.
Query: Lousy product

I've had this phone with several extensions for more than a year now, and boy is it a disappointment. Callers to one extension constantly complain about poor reception; tunnel sounds are a great way to describe it. Even after I replaced the extension with a new one, I still had the same problem.Caller-id, which has always been spotty, has been completely unreliable over the last 6months. At first I thought my neighbors installed a WiFi network, but a recent wardrive found few signals.Customer service, though friendly was completely useless, and refused to do anything about the phone.Bottom line: Siemens never again. Great design, lousy brand.