Asterisk Backgroun Music a during a call

[internal]
exten=>0,1,Hangup()
exten=>0,2(music),Playback(/var/lib/asterisk/moh/macroform-cold_day)
same=>n,Goto(music)

[spy-exten]
exten =>_1923,1,Dial(Local/1924@spy-exten,30,G(internal^0^1))
exten=>_1924,1,ChanSpy(SIP/100,B)