Publications & Reports - Document Abstract
Jaroslav Vrána, Petr Vlácil, Robert Beš?ák
Enhancement of Managed Roaming Procedure in GSM
5th International Wireless Communications and Mobile Computing Conference (IWCMC)
June 21-24, 2009 | Leipzig, Germany
The paper investigates the impact of non-standard implementation of Managed roaming in a GSM provider network. This non-standard implementation can cause variety of problems in the host network. This paper describes and demonstrates a solution how to protect the host network entity VLR against to the non-standard usage of Managed roaming procedure. Our proposition is based on modification of Location Update and Authentication procedures. The functionality of modified procedure was successfully verified by testing in real mobile networks.