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  • Users: Danny3955
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  1. Danny3955

    avaya isdn

    i have an avaya ip406 with two expansion shelves giving me sixty odd phones. I also have another shelf with isdn lines on it but this seems not to work. On the bottom unit it shows that the expansion shelves for the phones are connected but not the one for the isdn shelf (plus on the isdn ports...
  2. Danny3955

    RJ45 - X21

    I am trying to expand an Avaya exchange and the expansion port is presented as a RJ45. It has to be expanded over a radio shot which comes up as an X21 serial connection. I am looking for a cable solution to connect the pair, without using media convertors. help please!

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