SIM management menu also allows to enable/disable roaming as well as
manage contact list
Icons showing SIM card status are shown in the bottom right corner to let you
know if they are active.
WARNING ! : Always pay attention to related cost and billing from your provider.
HOW TO MAKE/RECEIVE VOICE CALLS
Select Telephone icon by accessing to apps menu.
You can dial telephone numbers or select one from the contact list as well as
check for call log.
