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MCMF – MF4 dialling for the Psion MC400

Adding MF4 (DTMF) dialling capabilities to the legendary Psion MC400 laptop from 1990

Posted byzedstarr19/04/202114/01/2022Posted inpsion, techTags:epoc, mc400, mf4, psion, retro, retro-computers, retro-computing, sibo4 Comments on MCMF – MF4 dialling for the Psion MC400

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