Question about Brother FAX-8360P Plain Paper Laser

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I have trouble faxing over my voip line

Brother MFC4800 will dail out the get the response the gets static and fails to send. Or it connects with the other fax but transmission fails due to poor line condition. What can I do to improve this??

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  • Anonymous Apr 15, 2008

    Poor line quality error on faxes over voip trunks on 4100



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You need an analog line for fax to work

Posted on May 12, 2008


Suggest try connecting your fax machine to another telephone walljack.

Posted on Mar 17, 2008

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Posted on Feb 16, 2008

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Fax problem

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.

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I'm not sure what type of machine it is but I think it's a Brother. It has a separate fax line and isn't connected to a computer or network or anything like that. The machine will receive faxes fine but...

Are you working with a line over VOIP like Vonage? If so faxes can be hard to send and receive because of line condition.
Also, if you have DSL make sure that you have the proper line conditioners in place so you have good line condition.
If those aren't a problem then contact your phone provider to discuss the issue.

Mar 03, 2011 | Office Equipment & Supplies

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How do I turn off ECM in my Brother MFC 8220?

From the Brother website:
If you are using Voice Over Internet Protocol (VoIP), (a technology that allows you to make telephone calls using a broadband Internet connection instead of a regular (or analog) phone line, review the information listed below. If you are not using VoIP continue to Step 8.

Voice Over Internet Protocol (VoIP) is not a marketed feature of your Brother machine, however there is a compatibility setting available with this machine that may assist with sending and receiving faxes when using VoIP. Adjusting this setting lowers the baud rate (modem speed) and turns ECM (Error Correction Mode) Off. To adjust this setting follow the steps listed below:

  1. Press Menu or Menu/Set => Fax => Miscellaneous => Compatibility.
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If your VOIP adapter has only one service line (VOIP PIN configured) then you have to remove the phone line and connect the FAX line. Now if you have the two service lines (in the both port separate VOIP PIN should be configured) - then you may connect this FAX to the other port. Both (Phone as well ad FAX) will work simultaneously. (Remember - two seperate PINS are required if you attach phone as well as FAX line in same adapter). After attaching the FAX - every think is normal like normal FAX line. Generally you don't have to dial pre country code like 011 or 00 or +, just dial the number starting from Country code.

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Km-2550 fax machine stays busy for long periods while it has document in memory and is communicating. The product is not a Lexmark, its a Kyocera KM-2550, but thats not a choice so...

1.....connect a regular fax to the line and see if you get the same response if you do then its a phone line issue... ... now lets troubleshoot...plug a phone in and pick up the reciever... listen for static on the line... if there is static... that can cause issues... call phone company... also if its voip... that can cause issues... if so tune your voip or get filters and this might reduce it... and possibly eliminate the issue.... if not... then i would call a kyocera tech and have him update the firmware for everything on the machine... printboards... scanners, fax... main system and if it keeps happening I would replace the fax board... still happening replace main board...

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Fax cannot send on a VOIP line unless the VOIP line has T.38 fax protocol service.

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Get a new phone wire. Put a phone on the line and listen for static. Too many phones on one line will cause problems. If the phone line is going thru a surge protector, check the quality of the sound with it and without it, it may be damaged. Keep power wires away from phone wires, they cause static.

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Fax machines are ANALOG devices. Any other condition is a ****-shoot.

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The connecting depends on several issues. This cant be said within a few words.
You have to read the manual which explains the very diffrent setting (see chap. fax). You can download the manual here: (choose your country from landscape, choose your country, choose download&support)
Have a look at the faq, too.

If that doesnt help, plz call brother hotline of your country!

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