Tablets with phone function
GSM
— the ability of the tablet to work in mobile networks of the GSM standard.This communication standard is considered obsolete, but is still used in some countries as the main one; in addition, GSM modules are usually compatible with 3G (UMTS) and LTE networks. In tablets, this function is usually used to make voice calls — the data transfer rate in GSM networks is very low, and there is usually no talk of comfortable Internet surfing or video calling.
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