HP OJ4620 Manuale Proprietario

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English
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Set up and use fax
Fax and digital phone services
Many telephone companies provide their customers 
with digital phone services, such as the following:
•  DSL: A Digital subscriber line (DSL) service 
through your telephone company. (DSL might be 
called ADSL in your country/region.)
•  PBX: A private branch exchange (PBX) phone 
system
•  ISDN: An integrated services digital network 
(ISDN) system.
•  FoIP: A low-cost phone service that allows you to 
send and receive faxes with your printer by 
using the Internet. This method is called Fax over 
Internet Protocol (FoIP). For more information, 
see the user guide.
HP printers are designed specifically for use with 
traditional analog phone services. If you are in a 
digital phone environment (such as DSL/ADSL, PBX, 
or ISDN), you might need to use digital-to-analog 
filters or converters when setting up the printer for 
faxing.
 Note: HP does not guarantee that the printer 
will be compatible with all digital service lines 
or providers, in all digital environments, or with 
all digital-to-analog converters. Contact your 
telephone company to determine which setup 
options are available for their line services.