Correct, your phone needs to actually re-connect between the two networks. It's ... | Hacker News

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		huslage on April 28, 2025 \| parent \| context \| favorite \| on: Did 5G kill the IMSI catcher? Correct, your phone needs to actually re-connect between the two networks. It's a whole new session and you can't handover between 5G SA and 5G NSA/LTE networks. There are some configurations that make this not much of an issue, but technically they are totally different networks.

lxgr on April 28, 2025 [–]

You can definitely hand over sessions between 5G and 4G (and by extension 5G NSA, which essentially is 4G from a signaling point of view).

huslage on April 28, 2025 | [–]

It's not a handover in the sense that you're actually creating a second connection to a different network. It's more akin to roaming than a handover.

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