SIM Toolkit functionality also allows for additional features such as subscription services (multimedia, news, horoscope, real-time updates), browsing online content, accessing mobile banking, to exist.
#Sim toolkit serial
It also permits checking SIM phone number, phone model, SIM serial number, device ID (IMEI, ESN, MEID, etc.), changing languages, and powering the SIM card on or off. The functionality makes value-based services such as checking balance, activating your SIM, voice mail, or roaming and purchasing packs (calls, texts, mobile data) possible. This includes sending requests, issuing commands, displaying menus, or entering information when user input is required. SIM Toolkit is designed in a single application environment for phones and makes communication on the network easier. So, while the mobile network provider is frequently the service provider, some carriers hire third parties to maintain/provide the service. Also, it works separately from the handset in the device and the active network on SIM. It is pre-programmed with a list of commands that define how communication with the outside world works.
SIM Toolkit, whose full name is SIM Application Toolkit (STK), is a standard of the GSM network, allowing GSM SIM cards to initiate contact with the provider and request VAT (Value Added Service).
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