Implementing An Express SIP NAT Traversal Server

Author

Song, Meina ; Chi, Jing ; Pi, Renjie ; Song, Junde

Author_Institution

Beijing Univ. of Posts & Telecommun., Beijing

fYear

2007

fDate

26-27 July 2007

Firstpage

527

Lastpage

529

Abstract

An express SIP NAT traversal server based on our transparent media switch used in SIP VoIP deployment is implemented, which can support media stream traverse symmetric NAT. The media switch proposed in this paper can make endpoints and SIP proxy both be unware of itself so the device can be deployed with the legacy equipments which can´t support NAT traverse. With port index technique, our prototype is built with code far less than ordinary SIP proxy program, this also make our reference design running more quickly and with smaller code footprint than ordinary SIP proxy.

Keywords

Internet telephony; media streaming; signalling protocols; SIP NAT traversal server; VoIP deployment; legacy equipment; network address translator; port index technique; session initiation protocol; transparent media switch; Communication switching; Communication system control; Data structures; Network address translation; Pervasive computing; Protocols; Prototypes; Streaming media; Switches; Telecommunication switching; SIP; VoIP; media switch; point index;

fLanguage

English

Publisher

ieee

Conference_Titel

Pervasive Computing and Applications, 2007. ICPCA 2007. 2nd International Conference on

Conference_Location

Birmingham

Print_ISBN

978-1-4244-0971-6

Electronic_ISBN

978-1-4244-0971-6

Type

conf

DOI

10.1109/ICPCA.2007.4365500

Filename

4365500