Dial tone in fax mode

I want to make sure I understand this completely. You get no dial tone from the fax machine when hooked up to VOIP. In the past, was there an audible dial tone from the fax, or did it just dial silently and give you an error if there was no tone? When you said you got a dial tone by connecting a phone to the ext phone port of "the machine" did you mean the fax machine? If you get a dial tone by running a phone through the fax machine, then the line is good. I have used a fax machine over Sunrocket before they went defunct, which used the same technology base as Vonage - so it should work. If you used to get an audible dial tone when using the fax, and no longer do, and you are geting a dial tone on a regular phone that is connected to the ext. port of the fax machine, then the problem has to be in the fax machine itself, not the VOIP. If you can verify that, we can go from there.

Be sure thephone line is in the "line" plug, not the "ext" plug on the back of the machine.

First pick up the handset and make sure you have a dial tone on the line.Second thing to check is to make sure that your fax machine set to "FAX" mode,not"PHONE"mode, and it is in auto receive,not manual receive mode.

Using "on hook" you should hear a dial tone, if you have one then dial a known good fax number. It could also be in manual receive mode. -Carl

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*Try to send the fax at a time when telephone line conditions have improved

sure...check the line, with a phone..do you have call waiting or something like that enabled..that can cause some issues, with the tone interruption to the internal modem.

put your fax at auto receive it is now on mannual receive

Refer to your manual. It may be under RX(recieve settings). Go disable FAX/Tel SW and make sure it is fax mode only

I'm no expert but, did you try touching the online or hook button on the fax to hear the dial tone? Or connect a basic home phone into the phone jack at the wall the fax was plugged into. Do you get a dial tone. If no dial tone, call the phone company. If there is a dial tone, its the fax.