asterisk users - Feb 2009 - Continue in dialplan on hangup

Is there a way to force a channel to continue in the dialplan after  
the remote end hangs up?

Specifically, I am trying to play around with setting up a fax  
server.  I can receive the fax, but sometimes the sending fax hangs up  
before my System command for printing can run and the fax never  
prints.  I know I can work around by setting up a custom context and  
use the 'h' extension, but I am hoping for a more simple method.

Daniel

Daniel Hazelbaker wrote:
> Specifically, I am trying to play around with setting up a fax  
> server.  I can receive the fax, but sometimes the sending fax hangs up  
>   
If your looking into setting up a reliable fax server and your not doing 
it over IP, then your best results will be using HylaFAX+ and iaxmodem 
with Asterisk.

HylaFAX+ handles the printing/re-faxing/fax2email of all 
inbound/outbound faxes via it's FaxDispatch script.  It's a 'Set and
forget (tm)' package.  I absolutely love it.

Doug

-- 
 
Ben Franklin quote:

"Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety."

Daniel Hazelbaker wrote:

Um..

Your=You're!



-- 
 
Ben Franklin quote:

"Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety."

On Fri, Feb 27, 2009 at 2:45 PM, Daniel Hazelbaker
<daniel at highdesertchurch.com> wrote:
> Is there a way to force a channel to continue in the dialplan after
> the remote end hangs up?
You use the 'h' side of the dialplan for the extension.

   exten => s,1,Answer
   exten => s,n,Set(some magic to make the filename unique)
   exten => s,n,ReceiveFax(filenamevar)

   exten => h,1,Cmd(/usr/bin/tiff2ps filenamevar.tiff)
   exten => h,n,Cmd(/usr/bin/lpr filenamevar.ps)

So if your ReceiveFax() saves a tiff, you can then on the 'h' side do
the tiff2ps and lpr steps. Which is the only way it's going to work if
you make these calls directly in the dialplan.

Another alternative is setting up external programs to handle those
things for you. Some people get good results that way. I am getting
good results doing everything in the dialplan. One brilliant thing
about doing it all from an asterisk dialplan is that it automatically
scales to the number of inbound calls in your system at that time.
Zero 'modems' when nobody is calling in and n 'modems' when
you're
load testing. Asterisk will dynamically create the resources, and
destroy them when the call completes. I loaded up my system with 150+
fake modems in load testing Asterisk-1.6 with ReceiveFax() directly in
a dialplan.

Whereas Hylafax needs to have a fixed number of 'modems' that it
manages at a time. So you need to designate a number of 'modems' based
on the number of inbound calls you expect.