\section{Security Considerations}

Internet-based emergency communications shares some of the same problems
that traditional ``911'' services have, such as the possibility of prank
calls and false alarms.  Thus, such a system can only be deployed
successfully if end users are identified by location.  Location
information is highly sensitive and thus must be protected from
disclosure to inappropriate parties.  In the ISP-based location model,
standard access controls, encryption and authentication of the iPSAP are
required, but are well understood.

