
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 
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 



 NOTE: HP does not guarantee that the printer will be compatible with all digital service lines or
 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
 providers, in all digital environments, or with all 
| ENWW | Fax and digital phone services 53 |