[Freeswitch-users] rxfax on b-leg

Hello! I wonder if there is a way to make rxfax recieve fax on outgoing call? The idea is that registered FS user dials out, than tone_detect is used to detect fax tone and start rxfax. The difference is that rxfax should be run on B-leg, instead of A-leg in incoming fax call scenario. I've tried to make a test config with outgoing call, rxfax & tone_detect, but when I dial out and remote user starts sending fax to me, FS detects a tone correctly, starts rxfax, but on my leg (A-leg, i hear fax tones) and B-leg (with real fax machine) is hanged up. Are there are solutions to explain somehow to rxfax that it should be run on B-leg, not on A-leg? Thanks in advance! With best regards, Kirill.