Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lots of Features With Poor Reliability

Two issues I had were:1. When connecting to a Vonage line, Caller ID did not work until after I completely powered down the phone, including removing the backup batteries.2. The headset volume was always too loud even when the volume was set to the minimum setting. I had to hold the phone away from my ear.The phone is full featured and seemed ideal for my small business, but it's going to get replaced.