Sorry, after changing 'language=ru' recording interface is fine. But call history is not=(
PS. I was trying to edit js/lang_ru.js, it was my mistake. New to add to lang/ru.php
$lang[$mylang]['inbound'] = "входящие";
$lang[$mylang]['outbound'] = "исходящие";
$lang[$mylang]['All'] = "Все";
$lang[$mylang]['Date'] = "Дата";
$lang[$mylang]['Direction'] = "Направление";
$lang[$mylang]['Number'] = "Номер";
$lang[$mylang]['Duration'] = "Длительность";
$lang[$mylang]['Billsec'] = "Разговор";
$lang[$mylang]['Disposition'] = "Статус";
$lang[$mylang]['BUSY'] = "ЗАНЯТО";
$lang[$mylang]['Busy'] = "Занято";
$lang[$mylang]['NO ANSWER'] = "НЕТ ОТВЕТА";
$lang[$mylang]['No answer'] = "Нет ответа";
$lang[$mylang]['ANSWERED'] = "ОТВЕЧЕН";
$lang[$mylang]['Answered'] = "Отвечен";
$lang[$mylang]['FAILED'] = "НЕУДАВШИЙСЯ";
$lang[$mylang]['Failed'] = "Неудавшийся";
It will translate all call history page.