Slow down fax transmission MX-2640N

[ccttechhelp]

Hi all

i want to send fax over VoIP and I need to turn down the transmission speed on this MFP to 9.6kbps.

I am able to create a fax contact in the address book and set the transmission speed to 9.6kbps and successfully send fax every time.

I need to make the default transmission speed for all faxes to be 9.6kbps.

There are no settings in the GUI to do this, how can i set it in the test simulation menu?

thanks.