Change language vicidialnow !!!

Hi evrybody !!
Could you please tell me the procedure to change the language in the agent and admin interface in Vicidialnow also in vtiger crm !!
it's possible te do that in vicidial before to login, but in vicidialnow
only english language is active;
Thanks for your help !!
Could you please tell me the procedure to change the language in the agent and admin interface in Vicidialnow also in vtiger crm !!
it's possible te do that in vicidial before to login, but in vicidialnow
only english language is active;
Thanks for your help !!