Hey;
Yes, I’ve also seen that 5 second delay with our fax server and it drove me
crazy. How I solved it was by doing a “core show channels <concise|verbose>”
and detect if there was a fax transmission going on. Doing it this way shows
up instantaneously without any delay. Like so:
mte6*CLI> core show channels concise
SIP/SIPRoutes-00000054!faxserver-tx!fax!11!Up!SendFAX!/var/spool/asterisk/fax/documents/faxadmin/default.tif,dfz!!voipbusiness!!3!4!(None)!1432132315.97
mte6*CLI> core show channels verbose
Channel Context Extension Prio State
Application Data CallerID Duration Accountcode
PeerAccount BridgedTo
SIP/SIPRoutes-000000 faxserver-tx fax 11 Up SendFAX
/var/spool/asterisk/fax/d 00:00:10 voipbusines
(None)
1 active channel
1 active call
62 calls processed
mte6*CLI> core show channels
Channel Location State Application(Data)
SIP/SIPRoutes-000000 fax@faxserver-tx:11 Up SendFAX(/var/spool/asterisk/fa
1 active channel
1 active call
62 calls processed
All of these outputs shows that there is a fax transmission taking place. I
hope this helps.
Regards;
JV
From: [email protected]
[mailto:[email protected]] On Behalf Of s m
Sent: Wednesday, May 20, 2015 2:54 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] reduce delay in fax detection
hello everybody
i want to send fax via asterisk in pass through mode. everything is ok if
enable fax detection in ooh323 and write fax extension in extensions.conf file.
just one problem: delay. i have to wait 5 seconds in order to fax detection
done. it is too long for me when i have voice call and no fax. my phone rings
after five seconds. is there any way to omit or reduce this time? i test and
understand that sip fax detection acts in some milliseconds but oohs323 needs 5
seconds to do that. what is difference between them?
any comments or hints are really appreciated.
SAM
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