[asterisk-users] About .call files when the congestion is on my side

[Lenz]

Hello Cosmin,
it's hard to tell without first knowing what is going on on your side, but  
I would not just drop call files and let Asterisk decide when to process  
them - if you have hundreds of faxes pending, you risk having all lines  
busy sending faxes and your other users without a dial tone.

I would do something like this:
1. create a cron job that runs every couple of minutes
2. the cron job looks at the list of faxes to send (ag a database table)  
and checks if there are call files waiting to be processed; it will thene  
generate call files up to a maximum number of parallel slots you choose  
(so if you have say 10 lines, you never have more than 5 faxes  
outstanding).
3. when a call file is generated, it is set up to retry a number of times  
(like 20 minutes) through the MaxRetries, RetryTime and WaitTime parameters
4. Once a fax is sent successfully, the database is updated so it's not  
sent anymore.

Just my euro 0.02,
l.




On Mon, 15 Oct 2007 10:26:41 +0200, Cosmin Prund  
<cosmin.prund at adicomsoft.ro> wrote:

> Hello everyone.
>
>
> I'm working on an application that needs to automatically send faxes. To
> send the faxes I create .call files but the .call files mostly fail
> because my lines are always congested within business hours! Is there
> any trick I can use to give the end user a better chance at actually
> receiving the faxes?
>
>
> I already tried using the local channel for dialing (so I can put in
> there a loop that waits for a line to be available) but this doesn't
> work because I'm sending faxes using chan_capi's capicommand(sendfax) -
> and that command requires an chan_capi channel, it doesn't like the
> "local" channel. Besides, looping in the dialplan would probably
> interfere with the "Wait" option in the .call file so that's a really
> bad solution.
>
>
> --
>
> Thanks for any suggestion,
>
> Cosmin Prund
>
>
>



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