I've install a spa9000 solution with a gateway isdn mediatrix 4402 - point to point protocol. This installation works with 6 phones spa962 and a big ricoh copier for the fax on the analog port.
All seems to work good except the sending of fax.
Sometimes the fax is not send and i receive a "line error" report. It depend on the number i call.
Some numbers always work perfectly and others never work.
It seems to be a problem with the fax of the callee (for example: i call the same customer on two different numbers to test on 2 different fax machines and it works on the first and not on the other). When the problem occur, the transmit never start and the call is ended.
An idea of a config to solve this ?