Global fax configuration options

Global fax configuration options allow for overwriting parameters passed by the fax application to the Dialogic^® Diva^® Media Board and to control parameters running on the Diva Media Board's T.30 protocols. This provides a high level of flexibility, especially if the fax application does not provide the required parameters.

Fax configuration options

Option	Description
Fax speed limit	Allows to limit the transmission speed. Normally, you do not need to limit the fax speed because the Diva Media Board automatically negotiates the appropriate speed.
Disable fine resolution	Disables the transmission of fax messages with high resolution.
Disable Error Correction Mode (ECM)	Disables the transmission of fax messages using ECM (Error Correction Mode).
Use ECM frame length of 64 bytes	Forces usage of HDLC frames with a maximum length of 64 bytes if transmitting fax messages using ECM (Error Correction Mode).
Disable 2D fax document compression	Disables usage of 2D fax document compression. This option also disables the automatic (transparent to application) fax document compression provided by the Diva Media Board in order to increase the effective transfer speed of fax messages.
Disable T.6 fax document compression	Disables usage of T.6 fax document compression. This option also disables the automatic (transparent to application) fax document compression provided by the Diva Media Board in order to increase the effective transfer speed of fax messages.
Disable uncompressed T.6 fax document lines	In some cases, compression of a fax document line results in a line that is longer than the uncompressed original. The T.6 protocol allows you to reduce the fax transmission time by transmitting such lines without compression. This option disables the line compression optimization.
Refuse incoming polling requests	Disables incoming polling requests.
Hide "total pages" information in fax message	Hides the "total pages" information field in the fax message.
Hide "head line" information in fax message	Hides the "headline" information field in the fax messages.
Hide "page info" information in fax message	Hides the "page info" (i.e. message head) field in the fax messages.
Disable fallback to lower speed on failure	"Feature fallback" is used to prevent excessive resending of fax documents if working over poor quality lines. The Diva Media Board internally saves the fax ID of the last peer and the results of the fax transmission from this peer. If the results of the last fax transmission were negative and the application starts message re-transmission, the Diva Media Board will detect this and fallback to a lower transfer speed. This setting allows for disabling fallback.