HP Photosmart Premium Fax e-All-in-One Printer - C410 User Guide - Page 191

Solution 1: Change the fax speed Solution: If you experience problems sending and receiving faxes while using an Internet fax service, use a slower fax speed. You can do this by changing the Fax Speed setting from Fast (33600) (the default) to Medium (14400) or Slow (9600). To set the fax speed from the control panel 1. Press Setup. Solve a problem 2. Press the down arrow button to highlight Advanced Fax Setup, and then press OK. 3. Press the down arrow button to highlight Fax Speed, and then press OK. 4. Press the down arrow button to select one of the following settings, and then press OK. Fax speed setting Fax speed Fast (33600) v.34 (33600 baud) Medium (14400) v.17 (14400 baud) Slow (9600) v.29 (9600 baud) Cause: The fax over Internet Protocol (FoIP) service might not have worked properly when the product was sending and receiving faxes at high speed (33600 bps). If this did not solve the issue, try the next solution. Solution 2: Make sure the phone cord is connected to the correct port on the product Solution: You can only send and receive faxes by connecting a phone cord to the port labeled 1-LINE on the product. This means that your connection to the Internet must be done either through a converter box (which supplies regular analog phone jacks for fax connections) or your telephone company. Cause: The product was not set up properly for faxing. If this did not solve the issue, try the next solution. Solution 3: Make sure the telephone company supports faxing over the Internet Solution: Check with your telephone company to make sure their Internet phone service supports faxing. If they do not support faxing, you will not be able to send and receive faxes through the Internet. Cause: Your telephone company did not support faxing over the Internet. Fax troubleshooting 189