Не работает перевод вызова

Доброго времени суток. Суть проблемы такова. Есть Asterisk 1.8, в нем уствновлены 2-ве платы OpenVox. Одна с с абонентским окончаниями FXS другая плата GSM (G400P), но и также есть ещё и SIP абоненты. При входящем звонке на СИМ карту, отвечает FXS абонент (здесь все ОК и вызов проключается). Далее FXS абонент делает контролируемый перевод вызова, третий абонент отвечает, FXS абонент кладет трубку и на этом конец. В логах появляется следующая запись. Подскажите пож., что означают WARNING? Гугл мне не помог(

localhost*CLI> gsm show spans
GSM span 2: Provisioned, Up, Active
GSM span 3: Provisioned, Up, Active
    -- Accepting call from '79851801092' to 's' on channel 1, span 2
    -- Executing [s@mg1:1] Dial("DAHDI/13-1", "SIP/111,7,Tt") in new stack
  == Using SIP RTP CoS mark 5
    -- Called 111
    -- SIP/111-00000001 is ringing
    -- Nobody picked up in 7000 ms
    -- Executing [s@mg1:2] Dial("DAHDI/13-1", "SIP/100&dahdi/g2&SIP/102&SIP/104&SIP/105&SIP/106&SIP/107&SIP/108&SIP/110&SIP/111,,Tt") in new stack
  == Using SIP RTP CoS mark 5
    -- Called 100
    -- Called g2
  == Using SIP RTP CoS mark 5
    -- Called 102
  == Using SIP RTP CoS mark 5
    -- Called 104
  == Using SIP RTP CoS mark 5
    -- Called 105
  == Using SIP RTP CoS mark 5
    -- Called 106
  == Using SIP RTP CoS mark 5
    -- Called 107
  == Using SIP RTP CoS mark 5
    -- Called 108
  == Using SIP RTP CoS mark 5
    -- Called 110
  == Using SIP RTP CoS mark 5
    -- Called 111
    -- DAHDI/2-1 is ringing
    -- SIP/110-00000009 is ringing
    -- SIP/102-00000003 is ringing
    -- SIP/106-00000006 is ringing
    -- SIP/104-00000004 is ringing
    -- SIP/111-0000000a is ringing
    -- SIP/108-00000008 is ringing
    -- SIP/105-00000005 is ringing
    -- SIP/100-00000002 is ringing
    -- SIP/107-00000007 is ringing
    -- DAHDI/2-1 is ringing
    -- DAHDI/2-1 answered DAHDI/13-1
       > doing dnsmgr_lookup for 'sipnet.ru'
       > ast_get_srv: SRV lookup for '_sip._udp.sipnet.ru' mapped to host sipnet.ru, port 5060
    -- Started three way call on channel 2
    -- Starting simple switch on 'DAHDI/2-2'
    -- Executing [111@vip:1] Dial("DAHDI/2-2", "SIP/111,,Tt") in new stack
  == Using SIP RTP CoS mark 5
    -- Called 111
    -- SIP/111-0000000b is ringing
localhost*CLI>
localhost*CLI>
localhost*CLI>
localhost*CLI>
    -- SIP/111-0000000b answered DAHDI/2-2
localhost*CLI>
localhost*CLI>
localhost*CLI>
        ****-- TRANSFERRING DAHDI/2-1 to DAHDI/2-2
    [Apr 12 22:32:04] WARNING[2681]: chan_dahdi.c:3592 _dahdi_get_index: Unable to get index for 'DAHDI/2-2' on channel 2 (dahdi_indicate(), line 9139)
        -- Hanging up on 'DAHDI/13-1<MASQ>'
        -- Hungup 'DAHDI/13-1<MASQ>'
    [Apr 12 22:32:04] WARNING[2681]: channel.c:6493 ast_do_masquerade: Channel type 'EXTRA' does not have a fixup routine (for DAHDI/13-1)!  Bad things may happen.
    [Apr 12 22:32:04] WARNING[2681]: chan_extra.c:930 _extra_get_index: Unable to get index for 'DAHDI/13-1' on channel 13 (extra_indicate(), line 3426)
        -- Hanging up on 'DAHDI/2-1'
        -- Hungup 'DAHDI/2-1'
      == Spawn extension (mg1, s, 2) exited non-zero on 'DAHDI/2-2<ZOMBIE>'
    [Apr 12 22:32:04] WARNING[2681]: chan_extra.c:930 _extra_get_index: Unable to get index for 'DAHDI/13-1' on channel 13 (extra_indicate(), line 3426)
    [Apr 12 22:32:04] WARNING[2681]: chan_extra.c:930 _extra_get_index: Unable to get index for 'DAHDI/13-1' on channel 13 (extra_write(), line 3333)
    [Apr 12 22:32:04] WARNING[2681]: chan_extra.c:3335 extra_write: DAHDI/13-1 doesn't really exist?****
      == Spawn extension (vip, 111, 1) exited non-zero on 'DAHDI/13-1'
        -- Hungup 'DAHDI/13-1'
    localhost*CLI>

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