| 摘要 |
The present application is about a method, a proxy server, serving control server and a system for emergency registration in a communication system. The proxy server receives an emergency registration request associated with a user who is roaming in a visited network. The proxy server inserts a maximal registration expiration value of the visited network into a parameter identifying the visited network in the emergency registration request, and forwards the emergency registration request towards a home network of the user. |
