Model 22 SIM Backup Device

Model 22 SIM Backup Device. Anonymous looking box is apparently a second generation SIM backup device in that it can handle GSM and CDMA, can store 1000 directory entries over 4 separate SIMs and can restore without using a PC. $15.00. It is compatible with GSM & CDMA and has a large capacity to save 1000 […]
Model 22 SIM Backup Device. Anonymous looking box is apparently a second generation SIM backup device in that it can handle GSM and CDMA, can store 1000 directory entries over 4 separate SIMs and can restore without using a PC. $15.00.
 It is compatible with GSM & CDMA and has a large capacity to save 1000 telephone directory information. It can very conveniently backup telephone directory information of all kinds of SIM card to the device. It can also easily restore telephone directory information saved in the device to SIM card.