Summary: It has terrible speakerphone quality. People on the other side can barely hear anything. I bought this primarily for the speakerphone. The speaker phone never worked properly. Regular mouthpiece works great. This is supposed to be HD quality voice. My cheap home phone has better speaker phone quality.
Summary: I use this phone 8+ hours a day for work. This is without a doubt the best IP phone I've ever used. Coming from using mostly Cisco IP phones (7000 series), I was a bit skeptical of going to a Polycom. But without a doubt it was a good move for me. It's half the price of a Cisco, and the speakerphone is far superior to Cisco. The people on the other end of the calls have told me the speakerphone is crystal-clear, even better-sounding than the handset.
Summary: I decided on this phone after reading others reviews, and deciding to DUMP my Cable Company for the LAST time for Phone Service. Over all I'm completely satisfied with this phone the call clarity is amazing with my new Ring Central VoIP Service! Although it took the Tech at RC about an hour's to perform the initial configuration process.
Good phone for office, speaker phone not as good as headset.
Steven M. Cohen "Steve", Amazon
9 January 2013
Summary: Good phone. I've been using it a year and a half with little to complain about EXCEPT the speaker phone quality. People on the other end say that they can definitely tell when I'm on speaker and when I'm using the headset. I've given professional talks using the phone but the talk moderators always require me to use the headset because of the muffled quality on the speaker phone. This is a minor inconvenience.