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Troubleshooting: If Cannot identify the telephone line type. Screen Appears

The telephone line type may not be identified correctly when connection is made to an optical line or ISDN line.
Follow the steps below to set Touch tone.

  1. Tap OK.

    Error screen: Cannot identify the telephone line type. Select the telephone line type in the next screen.

  2. Tap Signal tones sound (tone dialing).

    Easy setup screen: Select Signal tones sound (tone dialing)