I have a new installation of Callweaver in Ubuntu that I'm trying to get T.38 faxing working on. The error I'm getting when trying to fax from one extension to another is: Oct 14 21:42:16 WARNING[3061463952]: chan_sip.c:4720 process_sdp: Unable to lookup host in c= line, 'IN IP4 5004t=0 0' I've attached a zipped debug log using Tshark. I think it shows that the first fax (2012) is talking to the 2nd fax (2101), but not completing the handshake. Anyone heard of this error before? I get the same error when trying to fax out to the PSTN via a T1 PRI. In case it's an error in my dial plan, this is my extensions.conf: [general] static=yes writeprotect=no autofallthrough=no clearglobalvars=no priorityjumping=no srvlookup=yes [globals] CONSOLE=Console/dsp TRUNKMSD=0 TRUNK=SIP/outbound
exten => t,1,Hangup()
exten => 0133,1,Dial(Sip/2012,20)
exten => 0133,n,Hangup
exten => 2012,1,SipT38SwitchOver()
exten => 2012,n,Dial(SIP/2012,20)
exten => 2012,n,Hangup
exten => 2181,1,Dial(SIP/2101,20)
exten => 2181,n,Hangup
exten => 2101,1,SipT38SwitchOver()
exten => 2101,n,Dial(SIP/2101,20)
exten => 2101,n,Hangup
exten => _NXXXXXX,1,SipT38SwitchOver()
exten => _NXXXXXX,2,Dial(${TRUNK}/701${EXTEN}) ; adding 701 for Qwest
exten => _NXXXXXXXXX,1,SipT38SwitchOver()
exten => _NXXXXXXXXX,2,Dial(${TRUNK}/${EXTEN}) ; allows 10 digit dialing
exten => _1NXXXXXXXXX,1,SipT38SwitchOver()
exten => _1NXXXXXXXXX,2,Dial(${TRUNK}/${EXTEN}) ; allows long distance
dialing
This is my sip.conf:
[general]
context=default ; Default context for incoming calls
bindport=5060 ; UDP Port to bind to (SIP standard port is
5060)
bindaddr=209.xx.xxx.xxx
;bindaddr=0.0.0.0
t38udptlsupport=yes
disallow=all
allow=alaw
allow=ulaw
dtmfmode=inband
externip=209.xx.xxx.xxx
localnet=209.xx.xxx.0/255.255.255.248
srvlookup=yes
[2012]
type=friend
secret=bismar12
host=dynamic
nat=yes
qualify=yes
dtmfmode=inband
dial=SIP/2012
disallow=all
allow=ulaw
allow=alaw
canreinvite=no
srvlookup=yes
t38udptlsupport=yes
[2101]
type=friend
secret=bismar12
host=dynamic
nat=yes
qualify=yes
dtmfmode=inband
dial=SIP/2101
disallow=all
allow=ulaw
allow=alaw
canreinvite=no
srvlookup=yes
t38udptlsupport=yes
[outbound] ; Audiocodes SIP gateway
type=peer
qualify=yes
host=209.x.xxx.xxx ; Audiocodes SIP address
context=default
srvlookup=yes
nat=no
t38udptlsupport=yes
[inbound] ; Audiocodes SIP gateway
type=user
context=default
srvlookup=no
t38udptlsupport=yes
Thank you.
Tim Davenport
Callweaver Test.rar
Description: Binary data
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