Does anyone have the soft switches to lower the fax transmission on a MXB401 with MX-FXX3 option. They are periodically getting failed faxes with NG020023. They do have comcast phones and may need to slow down transmission.
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Re: MXB401 - Slow fax transmission
I have found that even lowering the transmission will not fix it. the only good way is for it to be on a dedicated analog phone line. make sure to use the cord that came with it, it will only have two connection on it a normal one has 4. maybe that will help. -
Re: MXB401 - Slow fax transmission
Make sure you have the two line phone cord that comes with the fax kit; the four line ones cause problems. Also, do not run fax line through the power filter; wall to machine. Analog is the best way to go, but most places are digital, or going there, and that can be problematic. As to the soft switches:
27-4-5 set to 11. This turns off V.34
29-1-2 set to 01. Changes coding to MMR
29-3-6 Transmission Speed:
"0000": V.27ter 2400bps "1000": V.17 14400bps
"0001": V.29 9600bps "1001": V.17 9600bps
"0010": V.27ter 4800bps "1010": V.17 12000bps
"0011": V.29 7200bps "1011": V.17 7200bps
"0100": V.33 14400bps "1100": V.17 14400bps
"0101": V.17 14400bps "1101": V.17 14400bps
"0110": V.33 12000bps "1110": V.17 14400bps
"0111": V.17 14400bps "1111": V.17 14400bps
29-7-8 Reception Speed:
"00": Not fixed
"01": V.29-9600bps
"10": V.27ter-4800bps
"11": V.17-14400bps
72-6 set to 1. This turns off ECM
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