-- Executing GotoIf("SIP/231-aeb6", " [ 1 != 3]?s|7:t|1") in new stack
    -- Goto (macro-get-exten,t,1)


and

Aug 14 22:47:21 DEBUG[28877]: pbx.c:1622 pbx_extension_helper: Launching 'GotoIf'
    -- Executing GotoIf("SIP/231-aeb6", " [ 3 != 3]?s|7:t|1") in new stack
    -- Goto (macro-get-exten,t,1)
Aug 14 22:47:21 DEBUG[28877]: pbx.c:1622 pbx_extension_helper: Launching 'Playback'
    -- Executing Playback("SIP/231-aeb6", "im-sorry") in new stack
Aug 14 22:47:21 DEBUG[28877]: channel.c:2023 set_format: Set channel SIP/231-aeb6 to write format gsm
Aug 14 22:47:21 DEBUG[28877]: rtp.c:1180 ast_rtp_raw_write: Difference is 10288, ms is 1306
    -- Playing 'im-sorry' (language 'en')




from 
[macro-get-exten]
exten => s,1,DigitTimeout(5)
exten => s,2,BackGround(allison7/please-enter-your)
exten => s,3,Playback(extension)
exten => s,4,Read(results,then-press-pound)
exten => s,5,NoOp
exten => s,6,GotoIf( [ ${LEN(${results})} != 3]?s,7:t,1)
exten => s,6,GotoIf($[${LEN(${results})}!= 3]?t,1:7)
;exten => s,7,Set(doesmailboxeist=MailboxExists(${results}))
;exten => s,7,GotoIf( [ ${doesmailboxexist} == 0]?t,1:)
exten => s,7,Set(fromext=${results})
exten => t,1,Playback(im-sorry)
exten => t,2,Wait(.5)
exten => t,3,Goto(s,1)
exten => T,1,Playback(im-sorry)
exten => T,2,Hangup