HI, all when ast_pbx_start()-dialplan thread and channel monitor thread start ? exten => _X.,1,Answer exten => _X.,2,Hangup how asterisk thread(channel and dialplan) handle this dialplan? pls give some detail about this. Regards, -- Bhrugu Mehta Sr. S/W Engineer (D&D) VOIP,Telephony Team (Asterisk,zaptel etc.) India