A system and method to provide emergency call access in Voice over
Internet Protocol (VoIP) systems without compromising network security.
The system and method enables VoIP emergency signal detection at a user
device, and transmission of the VoIP emergency signal from the user node
to a network server node through the use of data encapsulation and
decapsulation (or "tunneling"), allowing VoIP data routing via an IP
transport layer regardless of access or network security restrictions.