[Freeswitch-users] Tips adding ASR to a existing script.

18 Sep 2010


      I'm wanting to add ASR to this javascript I've attached below...  I've
seen the pizza ordering demo as an example but I'm just not sure where
to get started really an I'm looking for a little guidance. My script
below has only 4 possible options (dtmf 1-4) and I'm simply just
wanting to add the ability for a caller to speak the choice they would
like ie: 1,2,3,or 4 while retaining the ability for the caller to
enter the selection using dtmf. Any assistance would be appreciated...
:-)

Brian


# cat autoattendant_5002.js
 var condition = true;
 var domain = "home"; //by default this is the ipv4 address of
FreeSWITCH used for transfer to voicemail
 var digitmaxlength = 0;
 var objdate = new Date();
 var adjusthours = 0; //Adjust Server time that is set to GMT 7 hours
 var adjustoperator = "-"; //+ or -

 if (adjustoperator == "-") {
   var objdate2 = new
Date(objdate.getFullYear(),objdate.getMonth(),objdate.getDate(),(objdate.getHours()
- adjusthours),objdate.getMinutes(),objdate.getSeconds());
 }
 if (adjustoperator == "+") {
   var objdate2 = new
Date(objdate.getFullYear(),objdate.getMonth(),objdate.getDate(),(objdate.getHours()
+ adjusthours),objdate.getMinutes(),objdate.getSeconds());
 }

 var Hours = objdate2.getHours();
 var Mins = objdate2.getMinutes();
 var Seconds = objdate2.getSeconds();
 var Month = objdate2.getMonth() + 1;
 var Date = objdate2.getDate();
 var Year = objdate2.getYear()
 var Day = objdate2.getDay()+1;
 var exit = false;
 dialed_extension = session.getVariable("dialed_extension");
 domain_name = session.getVariable("domain_name");
 domain = session.getVariable("domain");
 us_ring = session.getVariable("us-ring");
 caller_id_name = session.getVariable("caller_id_name");
 caller_id_number = session.getVariable("caller_id_number");
 effective_caller_id_name = session.getVariable("effective_caller_id_name");
 effective_caller_id_number = session.getVariable("effective_caller_id_number");
 outbound_caller_id_name = session.getVariable("outbound_caller_id_name");
 outbound_caller_id_number = session.getVariable("outbound_caller_id_number");
 session.execute("set", "ignore_early_media=true");
 session.execute("set", "hangup_after_bridge=true");
 session.execute("set", "continue_on_fail=true");
 session.execute("set", "call_timeout=45");
 session.execute("export", "call_timeout=45");
 session.execute("set", "ringback="+us_ring);          //set to ringtone
 session.execute("set", "transfer_ringback="+us_ring); //set to ringtone

//console_log( "info", "Auto Attendant Server Time is: "+Hours+":"+Mins+" \n" );

 function get_sofia_contact(extension,domain_name, profile){
        if (profile == "auto") {
                        profile = "external";
                        session.execute("set",
"sofia_contact_"+extension+"=${sofia_contact("+profile+"/"+extension+"@"+domain_name+")}");
                        sofia_contact =
session.getVariable("sofia_contact_"+extension);

                        if (sofia_contact == "error/user_not_registered") {
                                profile = "internal";
                                session.execute("set",
"sofia_contact_"+extension+"=${sofia_contact("+profile+"/"+extension+"@"+domain_name+")}");
                                sofia_contact =
session.getVariable("sofia_contact_"+extension);
                        }
        }
        else {
                session.execute("set",
"sofia_contact_"+extension+"=${sofia_contact("+profile+"/"+extension+"@"+domain_name+")}");
                sofia_contact = session.getVariable("sofia_contact_"+extension);
        }
        console_log( "info", "sofia_contact "+profile+":
"+sofia_contact+".\n" );
        return sofia_contact;
 }

 function mycb( session, type, obj, arg ) {
    try {
        if ( type == "dtmf" ) {
          console_log( "info", "digit: "+obj.digit+"\n" );
          if ( obj.digit == "#" ) {
            //console_log( "info", "detected pound sign.\n" );
            exit = true;
            return( false );
          }

          dtmf.digits += obj.digit;

          if ( dtmf.digits.length >= digitmaxlength ) {
            exit = true;
            return( false );
          }
        }
    } catch (e) {
        console_log( "err", e+"\n" );
    }
    return( true );
 } //end function mycb

condition=true;

 if (condition) {
    //action

     //console_log( "info", "action call now don't wait for dtmf\n" );
      var dtmf = new Object( );
     dtmf.digits = "";
     if ( session.ready( ) ) {
         session.answer( );

         digitmaxlength = 1;
         while (session.ready() && ! exit ) {
           session.streamFile(
"/usr/local/freeswitch/recordings/greeting-main.wav", mycb, "dtmf 20"
);
           if (session.ready()) {
                if (dtmf.digits.length == 0) {
                        dtmf.digits +=  session.getDigits(1, "#",
20000); // 20 seconds
                        if (dtmf.digits.length == 0) {
                        }
                        else {
                                break; //dtmf found end the while loop
                        }
                }
           }
         }

         //pickup the remaining digits
         dtmf.digits +=  session.getDigits(4, "#", 3000); //allow up to 5 digits


         if ( dtmf.digits.length > "0" ) {

             if ( dtmf.digits == "1" ) { //
                 session.execute("transfer", "3973 XML default"); //
             }
             else if ( dtmf.digits == "2" ) { //
                 session.execute("playback", "shout://stream.infowars.com"); //
             }
             else if ( dtmf.digits == "d" ) { //
                 session.execute("bridge", "sofia/internal/5002@${domain}"); //
             }
             else if ( dtmf.digits == "3" ) { //
                 session.execute("playback",
"shout://ice.somafm.com/groovesalad"); //
             }
             else if ( dtmf.digits == "4" ) { //
                 session.execute("bridge", "sofia/gateway/home/lisaworking"); //
             }
             else {
                          //console_log( "info", "default option when
there is no matching dtmf found\n" );
                          session.execute("bridge",
"sofia/internal/5002@${domain}"); //
             }

          }

     } //end if session.ready

 }

[Freeswitch-users] Tips adding ASR to a existing script.

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