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01-24-2011 05:28 PM
I am having difficulty setting up the fax on the laserjet 3390. I have VOIP service.
I tried using the developer menu and went to "r/w parameter" and changed the "T30 xmit RateMax" to 16 but it still isn't working.
04-26-2011 03:11 PM
You are better off to go into the setup menu - fax setup - advanced setup - fax speed, and set this to slow. On the VOIP side you want to make sure the VOIP provider has set you up with a fax line. The fax line will use a different CODEC than the voice line which will improve fax reliabiliy.