HOW TO TURN OFF ECM ON OR OFF ON PANASONIC MACHINE

The Modem speed or baud selection from highest to lowest is done automatically.

? Modem speed*1: 33,600 / 31,200 / 28,800 / 26,400 / 24,000 / 21,600 / 19,200 / 16,800 / 14,400 / 12,000 / 9,600 / 7,200 / 4,800 / 2,400 bps; Automatic Fallback

see page 84 of 96
ftp://ftp.panasonic.com/faxmachine/om/kx-mb271_en_om.pdf
or click on
5 in 1 Multifunction Office Machine

You should consider .....
2.10 Configuring the unit to access the LAN (KX-MB781 only) You can print documents, scan documents, receive faxes or send faxes using a computer on the LAN. To enable these features, you need to set the IP address,
5 in 1 Multifunction Office Machine

I went online and found the HP8600 user manual and this is their solution to the error code 363 that you reported, which I copied off their site. Hope this works for you:

• Turn Error Correction Mode (ECM) off, if you encounter the same error repeatedly. Click this link HP All-in-One and Fax Products for more information on enabling or disabling ECM.
  

  
  

  NOTE: Error codes that apply specifically to ECM have ECM listed next to them.
  

  
  

Error Code: 356, 357, 358, 359, 360, 361, 362 ECM, 363 ECM, 364 ECM, 365 ECM, 366 ECM

Definitions

• The remote user pressed the Stop key, causing the session to be terminated.
• The remote machine encountered a system problem such as no paper or a paper jam. This prevented the fax from receiving any more pages, and caused it to terminate the session prematurely.
• The call-waiting service can cause this error. The click, heard for an incoming call, is actually a momentary disconnect of the line.
• The remote machine encountered an incompatible feature causing it to terminate the session.

Solutions

• Configure the remote machine for document reception by clearing any paper jams, loading sufficient paper, and clearing any other error messages.
• Configure the local fax machine to use a slower reception speed.
• Enable or disable the ECM setting.

Try this open the steam valve when you turn the machine on, leave the valve open until it starts to hiss with steam, then turn off valve. If that works then the vent valve is sticking and needs to be replaced.

press function
press 7
press monitor key 4 times slowly
* "start button"
should say service more
press 1
press 20 then start
press 1 for invalid / off
then press start
then unplug and plug back in the machine

Replace the magnets in the water tank, the reed switch is not reading one of them, most likely the safety or bottom magnet.

Error Codes: 332, 333, 334, 335, 336, 337, 338 ECM, 339 ECM, 340 ECM, 341 ECM, 342 ECM, 343 Definition

The remote fax machine might be defective.

Solutions

• Try to verify this by sending the same fax to other fax machines. If these transmissions are successful, then notify the user of the remote machine to make them aware of the issue.
• If the fax fails when sending to other machines, turn it off for 10 seconds, turn back on, and then try sending again.

Error Code: 334
Definition

The remote fax machine might be defective.

Solutions

• Try to verify this by sending the same fax to other fax machines. If these transmissions are successful, then notify the user of the remote machine to make them aware of the issue.
• If the fax fails when sending to other machines, turn it off for 10 seconds, turn back on, and then try sending again.

when I sent a fax via Satellite communication, I got error 503 for few customer - it seems I need to change ECM at the remote site .. any advice

Wow. Digital lines are difficult to fax over. Most are still set to use analogue lines.
Those are also very odd changes. Most fax machines no longer even have a setting as low as 9600 baud.
Your fax may not have the ECM mode as changable, may just be built in, but that is not a function you normally would want to turn off. ECM is Error Correction Mode.
This honestly just sounds like a disclaimer to excuse their system's poor fax service.

Try going through menu and turn ECM to no or invalid also try adsl filter on incoming line

ECM ( error correction mode) resends a fax that error was detected and was not transmitted.

Not sure it can be turned off. Try printing whatever is in memory.

here is the manual

http://www.retrevo.com/s/b+rother+770+manual?rt=tr&p=http%3A%2F%2Fpub.brother.com%2Fpub%2Fcom%2Fmfczl%2FUM_FAX870970MC.pdf