description=>'Format start_time according to the optional time zone provided here, e.g. Europe/Berlin.',
},
{
param=>'use_owner_tz',
description=>'Format start_time according to the filtered customer\'s/subscribers\'s inherited time zone.',
},
{
param=>'subscriber_id',
description=>'Filter for calls for a specific subscriber. Either this or customer_id is mandatory if called by admin, reseller or subscriberadmin to filter list down to a specific subscriber in order to properly determine the direction of calls.',