; Longer example available in ${TRUEPREFIX}/share/examples/asterisk/default ; For new installations, you may prefer to use extensions.ael rather than ; this file. [default] exten => *99,1,VoiceMailMain(${FILTER(0-9,${CALLERID(NUM)})}) exten => *98,1,Answer() exten => *98,n,ConfBridge(*98,c,M) exten => _XXX,1,Dial(SIP/${FILTER(0-9,${EXTEN})},12,tr) exten => _XXX,n,Voicemail(${FILTER(0-9,${EXTEN})}) exten => _XXX,n,Hangup