Problem activating VOIP-ALG

Hello,

we are having difficulties to activate VOIP-ALG through (i) "set default-voip-alg-mode proxy-based" and (ii) "set sip-helper disable" commands. It simply won't appear in the firewall configuration.

Is this because our firewall is configured in flow mode instead of proxy mode?

config system settings

 set inspection-mode flow  set sip-helper enable

 ...

end

Another problem is that we have enabled the VoIP feature in the GUI, VoIP security profiles become available. However we cannot select a VoIP security profile in any of our polices (not available).

Anyone who encountered this before?

Peter