[Freeswitch-users] Refer and Cannot Blind Transfer 1 Legged calls

Hello all, I'm trying to create a new INVITE using REFER from kamailio. Sending FS the first leg (which is answered in the dialplan and sent to a python script.) And then sending a REFER to FS to call another endpoint. I've tried and i'm always getting *Cannot Blind Transfer 1 Legged calls* and getting a NOTIFY with 404 Not Found Should this work? Regards, David Villasmil email: david.villasmil.work@gmail.com phone: +34669448337