exten => 200,2,NoOp
exten => 200,1,wait(1)
exten => 200,3,$(CALLERIDNAME)
exten => 200,4,Background(pls-hold-while-try)
exten => 200,5,SetMusicOnHold(default) 
exten => 200,6,Dial(SIP/201,20)
exten => 200,106,Voicemail(b201)
exten => 200,107,Voicemail(u201)
exten => 200,Hangup