HP LaserJet Pro MFP M521 series - No dial tone

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No dial tone

Make sure that the telephone cord is connected to the correct port on the product.

Make sure that the telephone cord from the product is connected directly to the wall telephone


Check for a dial tone on the phone line by using the

Start Fax


Disconnect the product telephone cord from the wall, connect a telephone to the phone jack on the

wall, and try making a voice call.

Disconnect the telephone cord from both the product and the wall and reconnect the cord.

Make sure that you are using the telephone cord that came with the product.

Connect the product phone cord to a jack for another phone line.

Check the phone line by using the

Run Fax Test

option from the


menu on the control panel.

a. From the Home screen on the product control panel, touch the Setup button.

b. Open the




Open the

Fax Service


d. Select the

Run Fax Test