[asterisk-users] reduce delay in fax detection

[s m]

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 <asterisk at voipbusiness.us>
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 at 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:* asterisk-users-bounces at lists.digium.com [mailto:
> asterisk-users-bounces at lists.digium.com] *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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