Hi there.
I have the similar problem ("Digium fax - sending fax call file vs
manager originate") sending faxes with Asterisk 1.6.2.6 and Digium
res_fax. Receiving is OK.
I use Local channel in Call file and context [fax-out] in dialplan.
My setup: Asterix<-SIP (T.38)-> Cisco(MERA MSIP v.1.0.2)<->
LocalTelco<->fax machine
Debian GNU/Linux 5.0 ; Linux 2.6.26-2-686 #1 SMP i686 GNU/Linux
Asterisk 1.6.2.6
sip.conf
[TG-out]
type=peer
host=193.110.9.17
insecure=port,invite
disallow=all
allow=alaw
t38pt_udptl = yes,fec,maxdatagram=400
t38pt_rtp=no
t38pt_tcp=no
extensions.conf
[fax-out]
exten => start,1,Set(CALLERID(num)=${LOCALSTATIONID})
exten => start,n,Wait(5)
exten => start,n,SendFax(${TIFF})
exten => start,n,NoOp(FAX has been sent)
exten => start,n,SetCDRUserField(${LOCALSTATIONID})
;exten => start,n,ResetCDR(w)
exten => start,n,Hangup()
etc.
Problem in short is as following:
after reINVITE from Cisco to negotiate T.38:
<--- SIP read from UDP:193.110.9.17:5060 --->
INVITE sip:37166101...@159.148.78.220 SIP/2.0
Via: SIP/2.0/UDP 193.110.9.17:5060
From: <sip:3250890...@193.110.9.17>;tag=74ff1200077fff10ff000018ff29ff16
To: "37166101111" <sip:37166101...@159.148.78.220>;tag=as32fabaec
Call-ID: 46ba3dad03495f6f3542698033470...@159.148.78.220
CSeq: 103 INVITE
Contact: <sip:3250890...@193.110.9.17;user=phone>
Max-Forwards: 10
User-Agent: MERA MSIP v.1.0.2
Content-Type: application/sdp
Content-Length: 183
v=0
o=- 1272610573 1272610573 IN IP4 193.110.9.17
s=-
c=IN IP4 193.110.9.17
t=0 0
m=image 25296 udptl t38
a=T38FaxRateManagement:transferredTCF
a=T38FaxUdpEC:t38UDPRedundancy
Asterisk reply with TRYING and then launches sendFax() and then I get
error.
Executing [st...@fax-out:14] SendFAX("SIP/TG-out-00000000",
"/var/www/izzifax/faxes/send/2010/04/30/127261056589/fax.tif") in new stack
[Apr 30 09:56:16] VERBOSE[1158] res_fax.c: -- Channel
'SIP/TG-out-00000000' sending FAX
'/var/www/izzifax/faxes/send/2010/04/30/127261056589/fax.tif'
[Apr 30 09:56:16] ERROR[1158] res_fax.c: channel 'SIP/TG-out-00000000'
is in an unsupported T.38 negotiation state, cannot continue.
Is there any solution?
Thanks
--
*Ilmars Knipshis
*
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