We have three different fax machines here. Two can receive from hylafax. The third can not connect properly. Now is this a configuration problem again or is it just accepted that some faxes can't connect with other faxes.
Try using:
"Use2D: No"
in your '/usr/spool/fax/etc/config' file. Read about this parameter in the config man page.
Matthias Apitz / guru@softcon.de ; (07:34:58 AM 01/27/97)