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  1. SometimesTooShady

    Philips DCS255 PABX

    Well, the thing is we activated ISDN B trunk line from PSTN into our Philips DCS255 PABX. And it works , but we cannot activate DDI ( Direct Dial In ) option on this trunk. I say documentation we have is very scarce, that's why I thought if someone is working with it ... maybe to give advice...
  2. SometimesTooShady

    Philips DCS255 PABX

    Is anyone using Philips DCS255 PABX ????????

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