exten => s,1,Answer
exten => s,n,wait(3)
exten => s,n,noop(${CALLERIDNAME})
exten => s,n,noop(${CALLERIDNUM})
exten => s,n,gotoif($[${CALLERIDNAME}=Maria]?s-fixcid|n(dial))
exten => s,n(dial),Dial(zap/g2&sip/carmen&sip/aron&sip/maria&sip/register&sip/r$
exten => s,n,voicemail(b0)
exten => s,n,hangup

exten => s-fixcid,1,gotoif($[${CALLERIDNUM}=103]?s-fixcid,n(set)|s,n(dial))
exten => s-fixcid,n(set),set(${CALLERIDNUM}=0000000000)
exten => s-fixcid,n,set(${CALLERIDNAME}=UNKNOWN)
exten => s-fixcid,n,goto(s,n(dial))