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home keyboard_arrow_right Help keyboard_arrow_right SIM keyboard_arrow_right eSIM keyboard_arrow_right What is the GSMA SGP.21 / SGP.22 and how does melita.io use it today? 

What is the GSMA SGP.21 / SGP.22 and how does melita.io use it today? 

SGP.21 / SGP.22 is the GSMA technical specification that defines the secure protocols and cryptography used to download and install eSIM profiles. melita.io uses SGP.21 / SGP.22 today as the foundational security and provisioning layer for all eSIM-based connectivity, including largescale IoT deployments, ensuring global interoperability, strong security, and longterm device lifecycle support. This is implemented in line with GSMA security, interoperability, and trust frameworks for remote SIM provisioning. 

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What is eSIM technology in the context of melita.io?What is the GSMA SGP.31 / SGP.32 specification supported by melita.io?Why are these standards important for melita.io customers?Is SGP.21 / SGP.22 already available across melita.io global deployments? What is an eUICC?What backend infrastructure does melita.io use for SGP.21 / SGP.22?What is the eIM component in the SGP.31 / SGP.32 model?What device changes are required to adopt eSIM with melita.io?Is SGP.31 / SGP.32 SMS free provisioning supported by melita.io?What lifecycle operations are supported by melita.io IoT eSIM?