Node.js send wav on phone with serialport

[Michael]

I use node.js to make phone call.

Everything work great, except when I try to send a WAV file.

This is the code I used to send WAV file, but I get only noise.

Any idea ??

this.write( 'AT+FCLASS=8\r', (function( _answer ) {

   this.write( 'AT+VSM=129,8000\r', (function( _answer ) {

      this.write( 'AT+FLO=2\r', (function( _answer ) {

         console.log( 'Set Flo Control : ' + _answer );

         this.write( 'AT+VSD=128,0\r', (function( _answer ) {

            console.log( 'Disable detect silent : ' + _answer );

                    

            this.write( 'AT+VTX\r', (function( _answer ) {

               console.log( 'Set voice : ' + _answer );

               var fs = require( 'fs' );

               fs.readFile( _file, 'base64', (function( _callback, _error, _data ) {

                  if( _error ) {

                     console.log( 'Error on read file : ' + _error );

                  } else {

                     this.write( _data.substr( 44 ) );

                  }

               }).bind( this, _callback ) );

            }).bind( this ) );

         }).bind( this ) );

      }).bind( this ) );

   }).bind( this ) );

}).bind( this ) );