Systems and methods are disclosed for serving VoIP emergency calls. In one embodiment, a call control entity is placed between PSAPs of an emergency services network and the IP network transporting VoIP calls. When the call control entity receives a VoIP emergency call and its associated user ID, the...http://www.google.de/patents/US20060072547?utm_source=gb-gplus-sharePatent US20060072547 - Systems and methods for serving VolP emergency calls
