I am from Serbia and I work in SBB (cable provider).
I looked at yours documentation and I wanted to inquire about the possibility of collaboration.
We are looking for 3rd Party Captive Portal provider(marketing approach).
We would like to give our wifi users CP with logging via social networks.
We need analytics on how many users have used the service, etc.
If you think there is an opportunity for cooperation feel free to contact me at firstname.lastname@example.org