1 Reply Latest reply on Feb 1, 2017 10:44 AM by jayh

    Ground Start PBX

    garabedy New Member

      I have a PBX that uses ground start lines. What equipment can I use to provide SIP to Ground Start lines?

        • Re: Ground Start PBX
          jayh Hall_of_Fame

          Analog ground-start lines are supported by the FXS ports of the TA900 series, any generation or model.


          Syntax is:


          interface fxs 0/1

             signal ground-start


          Please verify that you have a good ground connection to the grounding stud on the back of the TA900, preferably to the same communications ground being used by the PBX. Tip/ring polarity must be kept consistent as well when using ground-start lines.