I've owned this phone for my office for 1 1/2 years, along with the Plantronics CS55 wireless headset with handset lifter. Gives me SUPERIOR call quality, complete hands free mobility. I use it with my business line on my t-mobile at home phone service...
speakerphone capability, conferencing, lots of solid features that ALL work excellently. No complaints about this solid 2 line phone
none