[from-pstn]
;
exten => s,1,Dial(SIP/1333&SIP/2333,20)
exten => s,2,Goto(to-my-desk,s,1)
exten => s,102,Hangup
exten => s,103,Hangup
;
exten => i,1,Hangup
exten => h,1,Hangup