AGEphone Desktop AGEphone Desktop 2 AGEphone Business AGEphone Business 2 OS XP ◯ ◯ ◯ ◯ Vista ◯ ◯ ◯ ◯ 7 ☓ ◯ ☓ ◯ Wideband ☓ ◯ ☓ ◯ Call Transfer ☓ ☓ ◯ ◎ Speed Dial button 10 10 10 30 Twitter ☓ ◯ ☓ ☓ Language German ◯ ◯ ☓ ◯ Japanese ◯ ◯ ◯ ◯ English ◯ ◯ ◯ ◯ RWT ☓ △ ☓ ☓ Multiple Codecs ☓ ◯ ☓ ◎ Speex ☓ ◯ ☓ ◯ Noise reduction ☓ ◯ ☓ ◎ Multiple Services ☓ ☓ ◯ ◎ Multiple register ◯ ◯ ☓ ☓
