asterisk users - Jun 2005 - Everyone is busy/congested at this time

Hi all,
yesterday afternoon, I called through my provider (teliax). but from the
evening, I get this error. (below). then I checked in My Account page ans
support page in teliax. and I saw that they have given new setting (to
another proxy sever). I followed new settings. my Asterisk server is
connecting to the teliax. but still I con not make called. it shows this
error.
If somebody had this problem and got solved it, please tell me too. or any
suggetions?
thank you.
kumara

Starting simple switch on 'Zap/1-1'
    -- Executing Dial("Zap/1-1",
"IAX2/kumara@teliax/01194777070239|30|tr") in new stack
    -- Called kumara@teliax/01194777070239
    -- Call accepted by 208.139.204.228 (format g729)
    -- Format for call is g729
    -- IAX2/teliax-1 is busy
    -- Hungup 'IAX2/teliax-1'
  == Everyone is busy/congested at this time (1:1/0/0)
  == Auto fallthrough, channel 'Zap/1-1' status is 'BUSY'
    -- Hungup 'Zap/1-1'