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Editorial Team
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Asked: 2026-05-15T06:14:29+00:00

Is there end-to-end voice encryption in GSM ? If not, is voice communication between

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Is there end-to-end voice encryption in GSM ?
If not, is voice communication between mobile handset and
mobile base station, at least encrypted ?
What keys are used there and which alogrithms ? any idea?

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1 Answer

  1. Editorial Team

    Is there end-to-end voice encryption in GSM ?

    No.

    If not, is voice communication between mobile handset and mobile base station, at least encrypted ?

    Yes. Read this.

    What keys are used there and which alogrithms ?

    A3, A5 and A8 (mostly COMP128).

    For more references, read this and this.

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