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“Line in use” error

Please see the following for common ways to resolve this error:

  • If you are using a multi-handset cordless telephone, ensure all handsets are hung up
  • Try a different telephone with a different telephone cable
  • Disconnect the magicJack device and try it in the opposite configuration option (move a computer-connected device to the router, or router-connected device to the computer)
  • Try a different USB port on the computer

If the above steps did not resolve your issue, please contact our Customer Care team for further assistance.