What type of phone line are you using?
●
Dedicated line: A unique fax/phone number assigned to receive or 
send faxes. The phone cord should be connected to the top port 
inside the left side panel of the product (the one that is not labeled 
with a telephone icon).
●
Shared phone line: A system where both phone calls and faxes 
are received or sent using the same phone number and phone line. 
A single standard phone line can only perform one function at a 
time. You cannot send a fax while talking on the phone or while 
connecting to the Internet using the same phone line.
22 Chapter 3 Troubleshooting
ENXC
●
PBX system: A business environment phone system. Standard 
home phones and the HP LaserJet 3330 use an analog phone 
signal. PBX systems are digital and are incompatible with standard 
phones and with devices such as the HP LaserJet 3330. You need 
to have access to a standard analog phone line in order to send and 
receive faxes.
●
Roll-over lines: A phone system feature where, when one 
incoming line is busy, the next call “rolls over” to the next available 
line. Try attaching the product to the first incoming phone line. The 
product will answer the phone after it rings the number of times set 
in the product’s rings-to-answer setting. (See 
“Setting
rings-to-answer” on page 14
.)
●
Distinctive ring service: The phone company can assign two 
phone numbers to one physical line and assign each number a 
distinctive ring pattern. Make sure the product is set to respond to 
the correct distinctive ring pattern assigned to the fax phone number 
by your phone service provider. (See 
“Enabling answer ring
patterns” on page 15
.)