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We have been using an FBI-1A for years on our phone systems paging port. We have recently converted over to a VOIP system and do not know how to make the FBI-1A work with this new system.

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The FBI-1A is designed to work with a "Page Port" or a "Vacant Trunk Port" (FXO). You will need an ATA with an "FXO" port to use the FBI-1A, if you only have an "FXS" port available you will have to add our model RAD-1A to answer the ringing of the FXS port and convert it to a 600 ohm output for the FBI-1A.

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