ecrit-4----Page:11
1  2  3  4  5  6  7  8  9  10  11  12  13  14 

Explicit Indicators (cont’d)
Pros
Most flexible definition of emergency calls
Doesn’t rely on location in messages
Allows delegation of authentication function, e.g. to gateway or authentication service
Cons
Requires credentialing of emergency call marking authorities
PPT Version