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  1. NHStel

    Q931 circuit 81U alarm

    Hi, Have been trying to connect a V12 DLI to our SIP converter boxes i get one link to work but the other 3 i get a 81u alarm on the DX. I have checked all the Q931 parameters and they are good. Has anyone had this i was thinking it could be a load bearing problem with the power unit but i have...
  2. NHStel

    Siemens ISDX Q931 circuit

    Thanks will try the other forum. But have tried the non working one on the working still get a 81u so cant see how it would be the carrier as the alarm suggests
  3. NHStel

    Siemens ISDX Q931 circuit

    Hi, Have been trying to connect a V12 DLI to our SIP converter boxes i get one link to work but the other 3 i get a 81u alarm on the DX. I have checked all the Q931 parameters and they are good. Has anyone had this i was thinking it could be a load bearing problem with the power unit but i have...

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