[asterisk-users] WARNING T.30 ECM carrier not found

[satish patel]

We have two asterisk back to back connected over PRI T1 and i am testing FAX over T1 line. Its working fine and i am getting fax file as well but i got "WARNING T.30 ECM carrier not found" is it safe to ignore this WARNING ?

spandsp-0.0.6pre18 
Asterisk-1.8.3.3 


[from-pstn]
;Fax testing
exten => 8000,1,Set(FAXFILE=/var/spool/asterisk/fax/${CALLERID(num).tif)
exten => 8000,n,Set(FAXFILENOEXT=/var/spool/asterisk/fax/${CALLERID(num))
exten => 8000,n,ReceiveFax(${FAXFILE})


shirley*CLI>
    -- Accepting call from '' to '8000' on channel 0/1, span 1
    -- Executing [8000 at from-pstn:1] Set("DAHDI/i1/-8", "FAXFILE=/var/spool/asterisk/fax/.tif") in new stack
    -- Executing [8000 at from-pstn:2] Set("DAHDI/i1/-8", "FAXFILENOEXT=/var/spool/asterisk/fax/") in new stack
    -- Executing [8000 at from-pstn:3] ReceiveFAX("DAHDI/i1/-8", "/var/spool/asterisk/fax/.tif") in new stack
    -- Channel 'DAHDI/i1/-8' receiving FAX '/var/spool/asterisk/fax/.tif'
    -- Channel 1 echo canceler disabled its NLP.
    -- Channel 1 detected a CED tone towards the network.
[Apr 22 12:57:27] WARNING[5002]: res_fax_spandsp.c:367 spandsp_log: WARNING T.30 ECM carrier not found
    -- Executing [8000 at from-pstn:4] Hangup("DAHDI/i1/-8", "") in new stack
  == Spawn extension (from-pstn, 8000, 4) exited non-zero on 'DAHDI/i1/-8'
    -- Hungup 'DAHDI/i1/-8'

 		 	   		  
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