We have been using Faxual II for many years now (version 1.07 950808). The computer running the fax server is using DOS and appears to run OK. The modem is a USRobotics 14,400 fax modem. The program uses the sample sending routine with no changes apart from screen messages.
My problem is that any fax sent to some specific numbers ALWAYS fail with a "Page Not Acknowledged" error after the first page. We can manually send from our real fax machine OK to all of these numbers. We have asked and the receiving faxes are just normal fax machines. Most numbers work as expected.
Any ideas as to what may be causing this and how to correct the problem?
My problem is that any fax sent to some specific numbers ALWAYS fail with a "Page Not Acknowledged" error after the first page. We can manually send from our real fax machine OK to all of these numbers. We have asked and the receiving faxes are just normal fax machines. Most numbers work as expected.
Any ideas as to what may be causing this and how to correct the problem?