I purchased this CS361N headset to work with a Polycom SoundPoint Pro SE-225 desk telephone (not VOIP). I wanted a binaural design so that I would be less distracted by other noises around me while engaged in a conversation or even just listening.

Set-up is Easy: the Polycom corded handset (curly cable) connects to the base of the Plantronics unit and an RJ-11 cable goes from the Plantronics out jack to the side of the Polycom phone. After making a few minor adjustments to earphone volume and speaker sensitivity (defaults were adequate), the headset worked extremely well.

Quality & Comfort: audio quality is outstanding and people report that my voice sounds natural and clear on the receiving end. The headset is relatively light and the cushions sit gently on the ear (vs. over). I prefer the padded (leatherette?) cushions that came stock vs. the optional foam cups. The mouthpiece is adjustable and easily slides up/down when I want to move it away from my lips. I can wear these phones for hours at a time comfortably.

Operation: I am only occasionally involved in long teleconferences, so I typically do not wear the headset all day long. I have it configured so that, when I want to make a call, I put on the headset, then uncradle the Polycom handset and set it on the desk (opens line). From that point, I just dial a phone number. I am not using an optional auto-handset-lifter (don't need it); so, when a call is over, I merely hang up the Polycom handset, press an end call button on the left earpiece, and cradle the Plantronics in its recharger.

Recharger: I cannot remember how long a full charge lasts, but I think it might be 8-10 hours or so of continuous use. I have never left it off the recharger long enough to run out of juice and cannot imagine such a scenario occuring unless it happens accidentally. When the headset is properly seated/mounted on the recharger, a yellow light comes on and either blinks (recharging) or is solid (fully charged). When the headset is off the recharger, a red LED lights up. A green LED indicator on the top of the unit indicates "In a Call" (solid) or "Mute" (blinking). Couldn't be much easier than that!

Range: the range on this unit is quite extensive. While on a call recently, I walked outside to my mailbox (end of driveway) and was STILL connected. On many long conf calls, I meander all around my first floor (e.g. kitchen) with no static or disruptions of any kind.

Static: occasionally, I get some static on a call, but I haven't been able to determine the root cause. In some cases, it might be coming from the distant connection (e.g. VOIP!!!). Per the Plantronics instructions, I moved the recharger base unit at least 6" away from the Polycom. The incidents of static dropped considerably after that change. Most calls are pure and clean unless affected by my Blackberry (GPRS) which does cause electronic interference when it periodically syncs with the mother ship. The simple solution there is to move it further away from the Polycom.

I have only one gripe: while on mute (button is on left earpiece), the Plantronics unit beeps in my ear every 10 seconds or so which becomes quite annoying when I am on a long conference call listening to the dialogue. The recharger unit also blinks (LED) to indicate that the call is on mute, so I don't know why the beeping cannot be turned off optionally. It would be easier to slide the mouthpiece up to remind myself that I am on mute, so I don't need to be constantly pestered with that incessant beeping. I haven't found a way to disable it, so I am going to raise that concern with Plantronics.

Overall: excellent product and works extremly well. I am very satisfied with this purchase, especially in combination with the Polycom SoundPro SE-225.

KenB

Excellent headset. Very easy set up and excellent reception and call quality. Would highly recommend to those that have to be on the phone for any length of time.

I use this headset and really like it. It does not have the range that I would like (can't run down to the kitchen to get tea while on conference calls), but I can move around quite a bit and have even taken conference calls on my deck!

It is a little heavy and the headset doesn't adjust to different sizes well, but overall I like it.

I work in a fairly loud office environment and I was having a lot of difficulty participating in conference calls with typical bluetooth mono-aural headsets. What an amazing difference this headset makes, I no longer have any problems participating in conference calls.

It's a great wireless headset without any wires whatsover (as compaed to the outher wireless plantronics devices which have a small battery pack). The only minor annoyance is that the headset does not expand enough to fit absolutely comfortably, however, it is sufficient. Additionally, the provided foam ear pads come off easily (are needed for comfort).