Panasonic is one of the few companies today making a 2-line corded phone with a decent speaker phone. When my 17-year old Panasonic KX-T3155 2-line phone developed excessive static, I decide to try out other brands to see how they stacked up. I bought GE, RCA, and AT&T models, but wound up returning them all to my local Staples, OfficeMax, and Circuit City stores. The speaker phone feature was implemented terribly on all the models (muddy sound, low volume, cutting out when no one was talking on the receiving end, non-functional mute buttons, etc.). If you use the speaker phone feature as much as I do (waiting on hold for customer service, conference calls, etc.), then this is the phone to get. I knocked off one star in the ratings because there is no light for the mute button (like on my old model). Instead, it just displays "Mute" on the LCD. FYI - For some reason, this model is not carried by virtually any retailer (and very few online websites), so that's why I used Amazon.com.