Adding Fax Support
This section describes how to add fax entries to a modem information (INF) file. Fax entries are required to avoid known incompatibility problems and to support adaptive answering.
Most modem INF file entries install registry settings. The fax registry settings control the behavior of the Microsoft fax modem drivers and T.30 protocol engine. These settings are defined the first time the fax software is run, using a combination of the following techniques:
Querying the modem for capabilities.
Querying the modem to get an ID, and then using this ID to look up an internal table.
Reading the INF file for the modem. If an entry is present in the INF file, it overrides information obtained by either of the other methods.
Most of the modems that are tested by Microsoft do not require INF file fax entries.
This section includes the following topics:
For more detailed information about modem fax entries, see Fax Modem INF File Entries.