Samsung N760 User Manual page 89

When using a PBX phone system I can't dial on my modem.
If you use a PBX phone system you may need to press a number i.e. '9' to connect
to an external line, you should enter the following command before trying the
connection and check modem initialization.
And add "9," as the external line prefix (in our example) of the phone number
when using the dial command "ATDT9, 123-4567".
Screen displays random or garbage characters during communications.
After your modem has connected to the on-line service, your screen may display
garbage characters or after-images in screen transitions. This problem is caused
by a mismatch of the terminal modes between communications service and
communications programs. You need to match the terminal modes to each other.
Refer the user's guide of the communications program you're using.
Reports error message that insufficient Hard Disk space is available.
Delete the unnecessary messages or data you received by Modem or Fax every
one to three months as required.
If you're using WWW of the internet, many picture and data files can get
downloaded to your HARD DISK every time you visit a home page, which will
consume a lot of your HARD DISK space. Delete the unnecessary messages or
data you received by Modem or Fax every one to three months as required. For
more detailed information about the method of deleting, refer to the help of the
Web browser you've been using or your user's guide.
Depending on telephone line status, or types of Fax machines/programs
that send/receive the Fax, Fax transmission/reception may not work
correctly. In that case, please try other Fax programs. (e.g. Microsoft
Fax)
78 Users Manual
ATX3&W