MP C4503 Received fax but cant send fax with a voip line

[DanaNL]

Hello,

Today i had to install an Ricoh MP C4503, saddly the custommer had a Voip Line so the FAX is giving me headache.

i tried already to change the Bitrate of the FAX to 9,6Kbps but no luck also changed it to 2,4kbps but stil no luck.
i have also shutdown the ECM in the Fax SP.

any ideas will be appreciatet.

thanks in advance.

[slimslob]

Sound to me like a VOIP line problem, not a machine problem. Contact the VOIP line provider and tell them that the line is not supporting outgoing FAX.

[DanaNL]

The problem is that a Ricoh technician gave me the SP table to change the bitrate but its not function, and when i call Ricoh they simply dont answer because they're on holiday ( netherlands )

[slimslob]

The problem is that a Ricoh technician gave me the SP table to change the bitrate but its not function, and when i call Ricoh they simply dont answer because they're on holiday ( netherlands )

That SP table is only part of the problem. There are certain settings fir the VOIP line itself that have to be made.

[guitar9199]

That SP table is only part of the problem. There are certain settings fir the VOIP line itself that have to be made.

See if this helps...Fax SP settings for Digital Phone Systems and VoIP.pdf

[Gift]

Does it also happen if you use on hook/manual dial (while hering into the speaker). If that works you just need to turn off dial tone detection - that often causes connection issues // set user sw22 bit 0->0 ....IIRC^^. Otherwise the linked PDF includes all neccessary VoIP tweaks and since RX works it seems not a communication problem to me (wich requires a connection).

[DanaNL]

I have already done step 6 and 7 of the FAX SP settings. but stil no results.

@gift thanks for thinking but the problem stil exist

[Oze]

Modem Type for RX
G3 - 1
Switch 06, Bits 7,6,5,4

SP1105-007
Set = 0011

Max Carrier Allowable Drop Time
G3 - 1 Switch 0A, Bits 1,0

SP1105-011
Set = 10

Max Allowable frame interval
G3 - 1 Switch 0A, Bits 4

SP1105-011
Set = 1

[DanaNL]

im in awaiting of the customer to check their Portforwarding.

[DanaNL]

The Ports where forwarded and other machines can fax.....
i'm getting a listof wich machines are working and wich not.

for now 1 Brother MFC works.
so i think its the Ricoh with a faulty setup.


i hope they have a ricoh machine there so i can compare the SP table.