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VoIP Fax Settings


Faxing over VoIP with Canon Fax Machines.

Faxing with Canon machines over VoIP can have a higher success rate by doing the following settings.  Set the Baud rate to 9600 for a slower speed and turn off or disable ECM (Error Correction Mode) VoIP Mechanic recognizes that not every fax machine comes with implicit easy to find instructions for slowing down the BAUD rate to 9600.  We have accumulated some information on the following Canon Fax and Multi-function machines, the Canon C855, the imageclass D780, the Canon B140, B120 and the B115.Instructions to make many Canon Fax machines work over VoIP.                                                                                     

Lowering both the Baud rate and disabling ECM on a Canon C855

  • Press Function.
  • Press Data Registration.
  • Hit the Up or Down Arrow until Fax Settings appears.  Press Set.
  • Hit the Up or Down Arrow to navigate to the Sub Menus.
  • First Choose TX Settings.  (This is for sending faxes.)
  • Select TX Start Speed.  Choose 9600bps
  • Select ECM TXThen OFFThis will turn off ECM while sending a fax.
  • Next select RX settings. (This is for receiving faxes.)
  • Select RX Start Speed.  Choose 9600bps.
  • Select ECM RX.  Then OFF.  (This will turn off ECM for receiving a fax.)
  • Press Stop to exit.

*You may find that these directions will work with other Canon fax machines or be close enough to find the correct TX and RX Start Speeds.


Disabling ECM and Lowering the Baud rate on Canon imageCLASS D780

Under Fax Settings which can differ depending on exact machine navigate to Additional Functions, which will display the menus.  The Additional Function Key will Blink.  Use the Left (-) and Right (+) arrow to select the menu you want, in this case Fax Settings.  Press Set. 

  • Under User Settings navigate to TX Settings sets the transmission functions of the fax.  ECM TX turn to OFF.   
  • Under User Settings navigate to RX Settings sets the transmission functions of the fax.  ECM TX turn to OFF.
  • Under User Settings navigate to Tel Line Settings  then TX Start Speed set to 9600bps.
  • Under User Settings navigate to Tel Line Settings then RX Start Speed set to 9600bps.

Note as you navigate through the menu the default settings that are set on the fax will be in Bold.

 

Disabling ECM and Lowering the Baud rate on Canon Fax B140, B120 & B115

  • Press Function then press Start/Copy.
  • Select User Settings.  Using the Left and Right arrows navigate to TX Settings.
  • Press Start/Copy to access the settings under TX Settings.
  • Select ECM TX and select OFF to disable during sending.
  • Using the Left and Right arrows navigate to RX Settings.
  • Press Start/Copy to access the settings under RX Settings.
  • Select ECM RX and select OFF to disable while receiving.
  • Using the Left and Right arrows navigate to System Settings.
  • Press Start/Copy to access the settings under System Settings.
  • Select TX Start Speed.  Select 9600bps.  This will set the transmit or send speed to 9600bps.
  • Select RX Start Speed.  Select 9600bps.  This will set the receive speed to 9600bps.

Disabling ECM on a Canon Fax/Phone B95.

  • Press Function.
  • Press Start/Copy.
  • Hit the Right Arrow until TX Settings appears.  Press Start/Copy.
  • Hit the Right Arrow until ECM TX appears.
  • Hit Start/Copy to turn it OFF.
  • Hit Function to return you previous level until you can choose ECM RX by hitting the Right ArrowPress Start/Copy to turn it OFF.

Lowering the Baud rate on a Canon

Fax Phone B95.

  • Press Function.
  • Press Start/Copy.
  • Hit the Right Arrow until System Settings appears.  Press Start/Copy.
  • Hit the Right Arrow until TX Start Speed appears.
  • Choose 9600bps.
  • Hit Function to return you previous level until you can choose RX Start Speed by hitting the Right Arrow.
  • Choose 9600bps.

You may find that these directions will work with other Canon fax machines or be close enough to find the correct TX and RX Start Speeds.