“All of my mother's cordless Panasonic phones say "line in use." How can I correct this problem? Thanks”
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Thank you for your question. 1. Make sure all handsets are turned off. 2. Make sure phone cord from the main base is connected, try plugging into another jack to test. 3. Test another phone at location. If duplicate problem contact the phone company to report the issue. 4. You may contact our tech support team via chat https://shop.panasonic.com/contactus Mon-Fri 9am-5:30pm est.
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