This update to an original May 1999 report includes five newer phones. Such detail would normally result in a higher ranking in our chart, but few popular U.S. models are included in this roundup. These picks do not appear to have been updated in the past year. However, he does not provide details of his testing. This site has individual product reviews and ratings.
Some reviews are quite detailed, and include hands-on testing.
Digital Phone were well reviewed. Technofile describes cordless phone features, performance and test results in individual product reviews, but does not assign ratings, making it difficult to determine which models are best. He concludes that voice quality is comparable, but doesn't share any more information about how the phones perform or his testing methodology. One cordless phone mentioned here is the Siemens Gigaset 2420. Consumers Digest offers top picks in both corded and cordless phones.