Add section on connecting Lokole to the Internet

Signed-off-by: Aidan Fitzgerald <acf67@cornell.edu>

roles/lokole/README.rst

@@ -68,6 +68,15 @@ To reset the database, run the following command::
 
 This command will remove all users and all emails from the system.
 
+Connecting to the Internet
+--------------------------
+
+The Lokole software can be configured to access the Internet via USB modem, SIM card, or Ethernet, by setting the environment variable ``OPWEN_SIM_TYPE`` in the configuration file ``/etc/apache2/sites-enabled/lokole.conf``.  By default, this installation of Lokole is set to local-only (offline) mode, in which users can only send emails to other users on the same installation and cannot send emails over the Internet.  This has been done by setting ``OPWEN_SIM_TYPE`` to ``LocalOnly``.
+
+If configured to work with a USB modem or other Internet connection, Lokole will sync with the cloud server (operated by Ascoderu) on a nightly basis to deliver and receive emails globally.  However, arranging this is extremely complicated.  You would need a compatible form of connection and an Internet expert familiar with modem protocols, MX records, etc.  Ask that person to read the `Lokole software README <https://github.com/ascoderu/opwen-webapp/blob/master/README.rst>`_ in its entirety, to help you understand whether this is realistic for your organization.
+
+Lokole and Internet-in-a-Box would welcome a business plan (whether volunteer-based, grant-based or for-profit) from someone willing to operationalize this — making it relatively hassle-free for schools, clinics, libraries and orphanages around the world — that generally do not have access to technical experts.  Please `contact us <http://wiki.laptop.org/go/IIAB/FAQ#What_are_the_best_places_for_community_support.3F>`_ if you have the capacity to help make such a social enterprise happen.
+
 Troubleshooting
 ---------------