Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lacks distinctive ring feature for incoming calls

I bought this system to replace an earlier Panasonic DECT 6.0 system that was starting to get glitchy. I have been happy with Panasonic, but this new phone system lacks a feature I had come to rely on: no option to set distinctive rings for certain callers. Four ringtones and 10 different melodies, but you can't set any of them to a specific caller, sadly. I didn't realize the distinctive caller ring feature was so important to me until it was gone. Definitely a deal-breaker. I returned this system, and am limping along with my old one (KX-TGA931) until I find a quality phone set with the distinctive ring option. Any suggestions? I called Panasonic, and was told that none of the phones they currently manufacture have the distinctive caller ringtone feature. Disappointing.