Hey;
We built a pretty extensive fax server and part of what it does is check to
see how many fax sessions we currently have. We use that to determine how many
new fax sessions we are able to start sending.
Regards;
JV
From: [email protected]
[mailto:[email protected]] On Behalf Of s m
Sent: Thursday, May 21, 2015 12:21 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] reduce delay in fax detection
hello and thank you so much for your reply
just one question: how do you use it? AFAIK, when asterisk receive a call, it
select extensions based on the received number and when it detects fax, jump to
the fax extension. now when should i use these show commands to detect fax and
how should i tell asterisk to execute fax extension?
this is a big problem for me, so i really appreciate if you help me to solve it.
yours,
SAM
On Wed, May 20, 2015 at 7:11 PM, Tech Support <[email protected]> wrote:
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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