I purchased this phone to replace the Uniden EXI-7926 and like the other reviewers, was mostly satisfied and able to overlook some basic ease of use quirks. That was, until I noticed that the phone is unable to detect that a line is in use from a non Uniden phone. My primary reason for having 2 lines is so my wife can be on a call in the other room (from a non Uniden phone) and I can see this on the base or handset and choose to use the 2nd line without picking up and disturbing her call. I thought that this was the most basic of 2-line features. I guess Uniden thinks otherwise. Oh well, this one is going back.