Why dont speakers make the characteristic intereference sound anymore when there is an incoming call?

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https://www.youtube.com/watch?v=23rdefO4gBU
This is the sound I am describing.

In: Technology

Ha yes, I remember that. You used to be able to hear that even before the phone rang.

The reason why it happened is a bit too complicated for me, but the reason why it doesn’t happen anymore is that we don’t (or barely) use 2G (GSM) networks anymore. These networks were on the 800-900 MHZ frequencies.