[macro-std-exten]
exten => s,1,Dial(SIP/${ARG1},20)
exten => s,2,Goto(s-${DIALSTATUS},1)

exten => s-NOANSWER,1,Voicemail(u${ARG1}@main)
exten => s-NOANSWER,2,Hangup

exten => s-BUSY,1,Voicemail(b${ARG1}@main)
exten => s-BUSY,2,Hangup

;exten => _s-.,1,Goto(s-NOANSWER,1)

exten => o,1,Goto(0,1)
exten => 0,1,Dial(SIP/2060,20)