[asterisk-users] GotoIf DIALSTATUS - not working

[Joseph]

What am I doing wrong? 
Goif dialstatus: busy CONGESTION not working.

exten => _7NXXXXXX,1,Dial(SIP/7780${EXTEN:1}@pstn-5665,60,tr)
exten => _7NXXXXXX,n,GotoIf($[$["${DIALSTATUS}" = "BUSY"] | $["${DIALSTATUS}" = "CONGESTION"]]?line2)
exten => _7NXXXXXX,n(line2),Dial(SIP/9780${EXTEN:1}@pstn-1270,60,tr)
exten => _7NXXXXXX,n,Hangup()

When I try to call another number (7780476444) on a different line it supposed to jump to "(line2)" on busy (and dial Dial(SIP/9780${EXTEN:1}@pstn-1270) but instead 
the call hangs up.

    -- Called SIP/77804764444 at pstn-5665
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing [74764444 at internal:5] Hangup("SIP/11-0000015b", "") in new stack

-- 
Joseph