HP J5740 Case H Shared voice/fax line with computer dial-up modem, Example of a parallel splitter

Case H: Shared voice/fax line with computer dial-up modem

If you receive both voice calls and fax calls at the same phone number, and you also have a computer dial-up modem connected on this phone line, set up the HP All-in-One as described in this section.

Since your computer dial-up modem shares the phone line with the HP All-in-One, you will not be able to use both your modem and the HP All-in-One simultaneously. For example, you cannot use the HP All-in-One for faxing if you are using your computer dial- up modem to send an e-mail or access the Internet.

There are two different ways to set up the HP All-in-One with your computer based on the number of phone ports on your computer. Before you begin, check your computer to see if it has one or two phone ports.

•If your computer has only one phone port, you will need to purchase a parallel splitter (also called a coupler), as shown below. (A parallel splitter has one RJ-11 port on the front and two RJ-11 ports on the back. Do not use a 2-line phone splitter, a serial splitter, or a parallel splitter which has two RJ-11 ports on the front and a plug on the back.)

Figure 4-7 Example of a parallel splitter

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