Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Phone - But missing features

I have had the phone for about a month now and it has worked fine so far. It has great range (I have went up the street and to my neighbors house and still recieved calls). It only has one little problem of a slight ring/reverb when you talk coming out of the speaker after you have been using the phone for 5 or 10 minutes, this can get annoying sometimes.My only complaint about the phone is that it has no Mute or hold button. With all of the other features this phone has, I don't know why this was not included.