Set vpnweb SIP defaults, if none are set (#26).
If these are not set, and the group_vars/all/sip.yml is modified, we can cause an ansible error due to variables being undefined.
This sets them to the defaults, so we cannot get in that condition.
If these are not set, and the group_vars/all/sip.yml is modified, we can cause an ansible error due to variables being undefined.
This sets them to the defaults, so we cannot get in that condition.