Something

[general]
static=yes
writeprotect=no
autofallthrough=yes
clearglobalvars=no
priorityjumping=no

[globals]
TRUNK=Zap/G1                                    ; Trunk interface

[inc_3800]
exten => s,1,Answer
exten => s,2,Dial(IAX2/phoney2brains/s)
exten => s,3,Hangup
exten => s,103,Hangup

[brains2phoney]
exten => _91NXXNXXXXXX,1,NoOp(Zap/1/${EXTEN:1})
exten => _91NXXNXXXXXX,n,Dial(Zap/1/ww${EXTEN:1})
exten => _91NXXNXXXXXX,n,Hangup
exten => _91NXXNXXXXXX,n+100,Hangup


    -- Accepting AUTHENTICATED call from 192.168.100.27:
       > requested format = gsm,
       > requested prefs = (),
       > actual format = gsm,
       > host prefs = (gsm|ulaw),
       > priority = mine
    -- Executing NoOp("IAX2/joe-3", "Zap/1/18664743154") in new stack
    -- Executing Dial("IAX2/joe-3", "Zap/1/18664743154") in new stack
    -- Called 1/18664743154
    -- Zap/1-1 answered IAX2/joe-3
    -- Hungup 'Zap/1-1'
  == Spawn extension (brains2phoney, 918664743154, 2) exited non-zero on 'IAX2/joe-3'
    -- Hungup 'IAX2/joe-3'