180 ringing

  1. C

    Send back 180 Ringing to the gateway

    A short story that maybe can help someone. I've a customer with a ISDN gateway connected to a E1 and a FusionPBX. My customer wants something very simple to do: play busy tone when a user is on call. This simple thing made me crazy! Fusion answers with "180 Ringing" + "183 Session Progress", so...