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Mobile telephone has two subscriber identity module cards, instead of one subscriber identity module card, which are interchanged and change-over takes place both by switch (hardware) or by menu (software)
Mobile telephone has two subscriber identity module cards, instead of one subscriber identity module card, which are interchanged and change-over takes place both by switch (hardware) or by menu (software)
The mobile telephone has two subscriber identity module (SIM) cards, instead of one subscriber identity module card, which are interchanged. The change-over takes place both by a switch (hardware) or by a menu (software).
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