I had problems with sound quality also moment ago when I tryed call to my friend who has Skype Linux version. Sound was bad with internal mic and speakers. I could hear him quite ok, but he told me that my speech was quite bad.. Then we tryed N800 earphones with mic.. Sound was lot better.. I was told. I did already think that mic is bad so I did download recorder software for N800.. No.. Mic is ok, it did record my speech just fine.