[Freeswitch-users] Unable to Bridge to FIFO offhook agent

Hello, Freeswitch's ACD is cool! I am having a strange problem here. If I use a dialplan extension to bring a caller to a FIFO ( that already have the agent added using "fifo_member add" command), then, the agent's phone will ring and call is successfully bridged when the agent picks up the phone. The problem I have is that if the caller is bought to the FIFO after pressing a specific key in an IVR, then, when the agent picks up the phone, both caller and agent are being hung up by freeswitch. In the console, it says that it is failed to bridge the caller to the agent. Why is that the case and how can I resolve that? Best Regards, Woody