text: jQuery( function( ) {
      wppb_initialize_phone_field();
  } );
  
  function wppb_initialize_phone_field(){
      jQuery( ".extra_field_phone, .custom_field_phone" ).each( function() {
          var wppb_mask_data = jQuery( this ).attr( 'data-phone-format' );
          var wppb_mask = '';
  
          jQuery.each( JSON.parse( wppb_mask_data ).phone_data, function( key, value ) {
              if( value == '#' ) {
                  value = '9';
              }
              wppb_mask += value;
          } );
  
          jQuery( this ).inputmask( wppb_mask );
      } );
  }