+ $max_duration = $conf->config('cdr-max_duration') || 0;
+
+ $cp_accountcode = $conf->exists('cdr-charged_party-accountcode');
+ $cp_accountcode_trim0s = $conf->exists('cdr-charged_party-accountcode-trim_leading_0s');
+
+ $cp_field = $conf->config('cdr-charged_party-field');
+
+ $tollfree_country = $conf->config('tollfree-country') || '';
+