references

For better understanding of terms and technology, refer following papers.
1)Gonzalo Camarillo, “SIP DEMYSTIFIED” McGraw-Hill TELECOM
2)M. Handley, H. Schulzrinne, E. Schooler, J. Rosenberg "RFC 2543 Session Initaitation Protocol" March 1999.
3)Varshney, U., Snow, A., McGivern, M., and Howard, C. 2002. Voice over IP. Commun. ACM 45, 1 (Jan. 2002), 89-96.
4)Ahuja, S. R. and Ensor, R. 2004. VoIP: What is it Good for?. Queue 2, 6 (Sep. 2004), 48-55.
5)Singh, A. and Acharya, A. 2004. Using session initiation protocol to build context-aware VoIP support for multiplayer networked games. In Proceedings of ACM SIGCOMM 2004 Workshops on Netgames '04: Network and System Support For Games (Portland, Oregon, USA, August 30 - 30, 2004). SIGCOMM 2004 Workshops. ACM Press, New York, NY, 98-105.
6)Amir, Y., Danilov, C., Goose, S., Hedqvist, D., and Terzis, A. 2005. 1-800-OVERLAYS: using overlay networks to improve VoIP quality. In Proceedings of the international Workshop on Network and Operating Systems Support For Digital Audio and Video (Stevenson, Washington, USA, June 13 - 14, 2005). NOSSDAV '05. ACM Press, New York, NY, 51-56.
7)Stefan Brunner, Akhlaq A. Ali, “ VoIP Over IP 101” Juniper Network