Deutsche Telekom, Vodafone Make NB-IoT Roaming a Reality in Europ
Narrowband IoT (NB-IoT) technology achieved a big milestone this week when two European operators, Deutsche Telekom (DT) and Vodafone, completed an international roaming trial using global subscriber identity modules (SIMs).
The trial used NB-IoT modules and SIMs, which are modules that contain unique information tied to certain mobile network, from Deutsche Telekom roaming on Vodafone Spain’s network and SIMs and NB-IoT modules from Vodafone roaming on T-Mobile Austria’s network.
The GSMA, which oversaw the test, said that the trial demonstrated that operators can deliver a consistent level of service across networks. Plus, by testing certain use cases, like a smart meter deployment, the trial showed that features like incorporating a power-saving mode could be used even when NB-IoT modules are roaming.