Yes, you can make calls with the tablet using a normal telephone number if a SIM card with a telephone function is inserted. You must select the "Activate voice call" option in the settings under "Call settings", then you can make calls just like on a smartphone. The tablet supports dual SIM (SIM 1 + eSIM) and GSM/UMTS/4G bands, which allows you to make calls via mobile networks. For better call quality, we recommend using a headset, as the tablet is less comfortable on the ear.