GSM frame -

Dual Sim, GSM+GSM , Dual Sim, GSM+GSM Dual Sim, Yes, Yes Sim Size, Nano+Nano SIM, Nano+Nano SIM Device Type

Every GSM radio channel is 200 kHz wide and is additionally divided into frames of 8-time slots The global system for mobile communication

bar bar black sheet slot Network SIM Slot Type 1 nano SIM + 1 nano SIM More Standby Mode Dual SIM Dual Standby More 2G GSM 8509001800MHz More 3G WCDMA B1B5

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