Jabber Status Checker

;# // BEGIN XMPP Alert for Incoming Calls
;exten => 1003,1,JabberSend(openfire1,test@vpn.no-ip.org, Incoming Call from ${CALLERID(name)} at ${CALLERID(number)} received ${STRFTIME(${EPOCH},,%l:%M:%S %p %Z on %A %B %e)})
exten => 1003,1,Set(JSTATUS=${JABBER_STATUS(openfire1,test@vpn.no-ip.org/Xen)})
exten => 1003,n,GotoIf($[0${JSTATUS} = 1]?available:unavailable)
exten => 1003,n,(available),JabberSend(xmpp:openfire1,test@vpn.no-ip.org, Incoming Call from ${CALLERID(name)} at ${CALLERID(number)} received ${STRFTIME(${EPOCH},,%l:%M:%S %p %Z on %A %B %e)})
exten => 1003,Hangup
exten => 1003,n,(unavailable),exten => 1003,n,JabberSend(xmpp:openfire1,test@vpn.no-ip.org, Missed Call from ${CALLERID(name)} at ${CALLERID(number)} received ${STRFTIME(${EPOCH},,%l:%M:%S %p %Z on %A %B %e)})
;exten => 1003,n,MessageSend(xmpp:openfire1,test@vpn.no-ip.org, Call from ${CALLERID(name)} at ${CALLERID(number)} received ${STRFTIME(${EPOCH},,%l:%M:%S %p %Z on %A %B %e)})
;# // END XMPP Alert for Incoming Call

  -- Accepting AUTHENTICATED call from 66.87.79.192:8353:
    --        > requested format = ulaw,
    --        > requested prefs = (),
    --        > actual format = ulaw,
    --        > host prefs = (ulaw|alaw|gsm),
    --        > priority = mine
    -- Executing [1003@from-internal:1] Set("IAX2/801-4872", "JSTATUS=1") in new stack
    -- Executing [1003@from-internal:2] GotoIf("IAX2/801-4872", "1?available:unavailable") in new stack
[2015-03-27 15:00:41] NOTICE[16150][C-00000016]: pbx.c:4911 pbx_extension_helper: No such label 'available' in extension '1003' in context 'from-internal'
[2015-03-27 15:00:41] WARNING[16150][C-00000016]: pbx.c:12202 pbx_parseable_goto: Priority 'available' must be a number > 0, or valid label
  == Spawn extension (from-internal, 1003, 2) exited non-zero on 'IAX2/801-4872'
    -- Executing [h@from-internal:1] Hangup("IAX2/801-4872", "") in new stack
  == Spawn extension (from-internal, h, 1) exited non-zero on 'IAX2/801-4872'
    -- Hungup 'IAX2/801-4872'