Instruct: Classify Amazon reviews into positive or negative sentiment
Query: terrible phone, unreliable

Bought this phone when I signed up for Vonage less than a year ago. In 9 months, this phone has died twice unexpectedly. The first time it died, I could not receive calls or dial out. Trying to replace it through Vonage customer service was a joke. After at least 6 hours of hold times, and repeatedly explaining the problem they finally sent me a new one. I was without my phone for a whole month (completely unacceptable for running a business) and had to pay the shipping for the replacement phone. Thanks Vonage! Just four months later, the second phone has now completely died. Once again, Vonage customer service has proved to be no help. I took matters into my own hands and bought a Vonage/Linksys router with a regular phone. Everything works fine now so far. Fingers crossed.