A digital image viewing system comprises a wireless phone unit, a battery charger for the wireless phone unit and a digital photo frame in short-range wireless communication with the wireless phone unit. The digital photo frame may include phone function unit. Usual slide show is played on display of digital photo frame and replaced by a special image when a speaker of digital photo frame plays a ringer melody. The special image relates to a person causing the ringer melody. An operation at the wireless phone unit is transmitted to the digital photo frame through the short-range wireless communication to change the special image back to the usual slide show. Upon receipt of e-mail with image data attached, cellar phone automatically but conditionally opens the e-mail and takes out the image data to transmit it to digital photo frame through the short-range wireless communication or direct contact with battery charger.