There are many things that can interfere with proper sending of faxes. Has anything changed in your office recently? Phones changed? Did you recently get DSL service from your phone provider? If so, you probably need a DSL filter on the line going to your fax machine. Try faxing to different faxes to make sure that it is not the person you are sending to that has the problem. If you are using Voice Over IP or VOIP phone, good luck, as older fax modems do not always play nice and you will likley need to speak with your VOIP provider to ensure they have their lines configured. If nothing has changed in your office then perhaps your modem has just failed, it does happen. A new cord between the jack and the machine is a a cheap test as well. If you have a telephone, unplug the fax and plug in the phone and see if you can make a call.
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There are many things that can interfere with proper sending of faxes. Has anything changed in your office recently? Phones changed? Did you recently get DSL service from your phone provider? If so, you probably need a DSL filter on the line going to your fax machine. Try faxing to different faxes to make sure that it is not the person you are sending to that has the problem. If you are using Voice Over IP or VOIP phone, good luck, as older fax modems do not always play nice and you will likley need to speak with your VOIP provider to ensure they have their lines configured. If nothing has changed in your office then perhaps your modem has just failed, it does happen. A new cord between the jack and the machine is a a cheap test as well. If you have a telephone, unplug the fax and plug in the phone and see if you can make a call.