We have installed a fax modem to our computer at work. We have typically have no trouble receiving or sending faxes. However, occasionally we will not receive a fax that the person says went through. When we switch the line back to the standard fax machine, it comes through fine. My boss wants to just keep it on the fax machine to avoid the problem. However, I feel like that would be taking a step in the wrong direction because the fax modem is so convenient. Does anyone have any suggestions or explanations?