[incoming]
exten => 499926,1,Goto(in_biz,s,1)

;incoming via broadvoice
exten => 4441394,1,Answer
exten => 4441394,2,Wait(3) ;Was clipping sound
exten => 4441394,3,Background(biz-one-moment)
exten => 4441394,4,SetAccount(broadvoice)
exten => 4441394,5,Dial(SIP/7000&SIP/msn,60,mt)

exten => 555,1,Dial(SIP/7001&SIP/msn,60,m)

exten => 8662971589,1,Goto(in_biz,s,1)