PhoneArena reviews the Samsung B7722. Thе phone is an enticing offer for people who definitely need the comfort of using two networks, or two SIM cards from the same carrier simultaneously on a brand name handset. The ability to change cellular subscription lines with the touch of a button on a phone with a comparatively generous 3.2" touchscreen makes it quite a novel handset … For more details, check our website at: http://www.phonearena.com