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  • Users: cpudrbob
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  1. cpudrbob

    How do you remove superloop 28 from option 21?

    One way to have a cheap telephone system is to use an old SL-1 system with the processor cards from an Option 21. The first time I did this we hired a company that charged a foutune to reprogram the Option 21 software to work on the older SL-1 system. They said it was a tricky procedure to...

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