I recently switched from AT&T to Phone.com and am thrilled. The call quality is actually better than with AT&T and Customer service is courtesy and helpful. The new system was easy to install and a my new number was up and running in minutes. I traveled to Europe and was able to use my Voip adapter from there and receive and place calls as if I were at home. Phone.com emails me with a mp3 file of each voicemail as soon as it is recieved; this has proved priceless while traveling. Honestly, I couldn’t be happier.