GSM is long dead but yes you need a SIM and a MNO as the connection is provision... | Hacker News

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hocuspocus on June 17, 2025 | parent | context | favorite | on: WhatsApp introduces ads in its app

GSM is long dead but yes you need a SIM and a MNO as the connection is provisioned using IMS service entitlement.

dgellow on June 17, 2025 [–]

Then why would we need such a protocol? I want to be able to chat using any of my devices.

That’s what makes Telegram and WhatsApp great

hocuspocus on June 17, 2025 | [–]

WhatsApp isn't terribly different here.

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