faxing with a PBX phone system or an ISDN line
If your telephone line has a PBX system, make sure you dial the number for an
outside line before dialing the fax number.
Caution!
Many digital PBX systems include a call-waiting tone that
is factory-set to “on.” This call-waiting tone will interfere with any
fax transmission, and you will not be able to send or receive faxes
with your HP Officejet. Refer to your digital PBX system’s
documentation for instructions on how to turn off the call-waiting
tone.
If you are using either a PBX or an ISDN converter, make sure the HP Officejet is
connected to the port that is designated for fax and phone use.
Some ISDN systems allow you to configure the ports for specific phone
equipment—for example, you might have assigned one for telephone and Group
3 fax and another for multiple purposes.
Note:
If you have problems when connected to the fax/phone port of your
ISDN converter, try using the port designated for multiple purposes (might
be labeled “multi-combi” or something similar).