Typical mobile phone mini-SIM card. GSM feature phones require a small microchip called a Subscriber Identity Module or SIM card, in order to function. The SIM card is approximately the size of a small
postage stamp
Usually placed underneath the battery in the rear of the unit Typical mobile phone mini-SIM card. GSM feature phones require a small microchip called a Subscriber Identity
Module or SIM card, in order to function.
The SIM card is approximately the size of a small postage stamp usually placed underneath the battery in the rear of the unit.