monthly activationsAnswered

I would like to ask if LimeLM has the features below:

a) check every month it the license key is still valid (for subscriptions)

b) if the check can't be done (for example, if computer is offline), user would have some days to connect the computer to the Internet before the software can't be used. For exemple, if an user is using an activated software, and if it is not possible to check if the activation is still valid, she/he would have 5 days to activate the software before it stops working.

Thank you,
Andrei