'index' => [ [ 'calldate' ],
[ 'src' ], [ 'dst' ], [ 'dcontext' ], [ 'charged_party' ],
[ 'accountcode' ], [ 'carrierid' ], [ 'cdrid' ],
- [ 'sessionnum' ],
+ [ 'sessionnum' ], [ 'subscriber' ],
[ 'freesidestatus' ], [ 'freesiderewritestatus' ],
[ 'cdrbatch' ], [ 'cdrbatchnum' ],
],