Missing menu items in media-security

Hello,

we have :

Acme Packet 3900 ECZ7.5.0 Patch 4 (Build 169)

Oracle Linux branches-7/el7-u4 {2017-12-14T07:00:00+0000}

Build Date=02/12/18

And I wanted to configure sRTP but in a menu media-security I don`t have media-sec-policy neither sdes-profile, jut exit and quit:

SBC(media-security)#

quit        quit out of configuration mode

exit        return to previous menu

SBC(media-security)# media

SBC(media-security)# media-sec-policy

% command not found

SBC(media-security)# sdes-profile

% command not found

Advanced features are enabled. What am I missing here? Is there some parameter that I need to activate or ...?

Best regards

Dalibor