[Serusers] How to enable my Voice Mail in ser.cfg

[Quek Eric]

Quek Eric <inputdev at yahoo.com> wrote: thx Steve,
actually i dont quite understand e ser.cfg my previous
project mate created.
here i added tis portion into my ser.cfg...can u teach
me where do i call t_on_failure?

if(method=="ACK" || method=="INVITE" || method=="BYE"|| method=="REFER")
{
     if(t_newtran())
     {
           t_reply("100","Trying -- just wait a minute!");

           if(method=="INVITE" || method=="REFER")
           {
                     log("**************** vm start -begin ******************\n");
                     if( uri =~ "conference" )
                     {

                           if(!vm("/tmp/am_fifo","conference"))
                           {
                                    log("could not contact conference server\n");

                                    t_reply("500","could not contact conference server");
                            };
                     }
                     else if( uri =~ "echo" )
                     {

                           if(!vm("/tmp/am_fifo","echo"))
                           {
                                     log("could not contact echo\n");

                                     t_reply("500","could not contact echo");
                            };
                      }
                      else 
                      {

                             if(!vm("/tmp/am_fifo","voicemail"))
                             {
                                      log("could not contact voicemail\n");

                                      t_reply("500","could not contact voicemail");
                             };
                        };

                         log("**************** vm start - end ******************\n");
                         break;
                };

                if(method=="BYE")
                { 
                        log("**************** vm end/refer - begin ******************\n");

                        if(!vm("/tmp/am_fifo","bye"))
                        {
                                log("could not contact the media server\n");
                                t_reply("500","could not contact the media server");
                        };

                        log("**************** vm end/refer - end ********************\n");
                        break;
                   }; 
      } 
      else 
      { 
               log("could not create new transaction\n"); 

               sl_send_reply("500","could not create new transaction");
       };
};
# Voicemail specific configuration - end

Pls do help me...
rgds,
Eric 
Sure. Call t_on_failure("7") in route block 0, the
main route block 
in 
SER. This
will define an internal "flag" labeled 7. When the
current call "fails" 
that is does not
get a 200 OK message SER will look for a failure block
with the label 7 
and
execute the code therein. Note that 7 is an arbitrary
integer. You can 
pick whatever
integer makes you happy and doesn't conflict with
existing flags.

In the failure_route most people simply re-write the
destination 
hostname and
then t_relay the call to that new host. You may need
to re-write the 
port number
too. In either case this host and/or port is where
your voicemail 
application is
listening.

A failure_route is used instead of the regular route
statement 
because 
you want
this section of code to be reached when a status code
other than a 200 
OK is
received for a call. An unanswered call gets something
like a 487 (you 
should
check this for the actual number).

If you use SEMS you have yet another challenge. When
SEMS was first 
deployed
it communicated with SER used a fifo. Since the fifo
is not a SIP 
addressable
entity you needed a way for the failure_route to send
SIP messages to 
SEMS.
Most people used a second instance of SER on the same
box but with a
stripped down config file. This second instance could
communicate with 
SEMS
using a different named pipe.

Newer versions of SEMS do not have this limitation
but you need to 
configure
the type of interface SEMS will use. fifo or socket. I
did one 
installation this
way but then moved onto using Asterisk for voicemail.

Hope this helps.

_Steve

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