Poor Voice Quality, Cumbersome Menu Operation

I "upgraded" from the Uniden TRU-8885 3HS Cordless Speakerphone 5.8GHz thinking that the Panasonic phone system would clear up occasional interference from other wireless devices. Unfortunately, the Panasonic system is a major step down from the much older Uniden system. Voice quality is mostly very bad, even when standing next to the phone base. The menu system is cumbersome to navigate and get voice messages. As a comparison, the Uniden had a single button to obtain voice messages; the Panasonic requires three clicks through the menu system. The caller ID is far to slow to display or verbally announce callers. Overall, I'm very dissatisfied with this purchase.