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Recent content by rosomax

  1. R

    NEC Phone on Yeastar PBX

    Hi, I'm trying to configure a NEC ITK-12D-1P (DT900 series) phone on a Yeastar P550 PBX. The system requires firmware version 05.03.04.99 or later, but I haven't been able to find it anywhere. Can anyone in this forum help me? Thank you.
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