5. Conclusion

The multimedia IP domain defined by the standardization body for third-generation mobile telephony promises simple service creation. What's more, these services will be brought to market more quickly, thanks to an architecture that is independent of the operator's network technologies.

For the deployment of services (taking into account, for example, multimedia calls between two users), the IMS takes into account a large number of network functionalities such as user identification and authentication, quality of service management, security, etc. These functionalities are implemented within the network procedures defined for the IMS. These functionalities are implemented within the network procedures defined for the IMS. In particular, registration enables the user to make known his current location (usually his dynamically assigned IP address) in order to access...