Deutsche Telekom transferred an eSIM profile between the two biggest smartphone OSes. The company managed to pass barriers to device upgrades using a GSMA standard and its own entitlement server.
The operator stated it is the first in Europe to transfer an eSIM profile between Android and iOS devices. The moves were previously restricted to phones on the same platform. DT explained its initial intra-platform capability spans iPhones running iOS 26 and Google Pixel 10 devices, with more Android models in the pipeline.
Using the GSMA TS.43 entitlement configuration specification and its own server, DT enabled eSIM transfers to be initiated in the settings of the user’s new smartphone while its system performs background checks regarding the eligibility of the device, tariff, and user. If it all checks out, DT’s system approves the transfer of the user’s existing profile while maintaining their phone number and tariff.
We spoke with Adrian Ježina, President of the Management Board and CEO of Telemach Croatia, about strategic decisions, investments, and how he sees the telecom industry evolving in the years ahead.
Croatia’s fixed broadband market in 2025 was marked by intense competition among operators, visible technological progress, and a gradual shift toward very high-capacity networks, primarily FTTH infrastructure. This is clearly confirmed by the “Barometer of Fixed Internet Connections in Croatia,” published by nPerf in January 2026, covering measurement results from 1 January to 31 December 2025.