Using a Computer Modem
If you want to use your computer modem for faxing or for a dial-up internet connection, connect the
computer modem directly to the back of your printer with the TAD as shown here in Figure 2.
Set your printer to Ans/Fax mode and set the Ring to Answer to a digit greater than the Rings to
Answer setting for the TAD.
Turn off the computer modem's fax-receive feature.
Do not use the computer modem if your printer is sending or receiving a fax.
To fax via the computer modem, follow the instructions provided with your computer modem and fax
Refer to the DELL Laser MFP 1815dn
and Dell ScanDirect
Telephone Answering Device
Dell Laser MFP 1815dn
User's Guide if you want to capture images using your printer
and send images using your fax application with the computer modem.
Using Your Multi-Function Printer