H. F. Qi, X. H. Yang, R. Jiang, B. Liang, S. J. Zhou. Novel End-to-End Voice Encryption Method in GSM System. In Proceedings of the IEEE International Conference on Networking, Sensing and Control, ICNSC 2008, Hainan, China, 6-8 April 2008. pages 217-220, IEEE, 2008. [doi]
Abstract is missing.