Title :
An ALG-Based NAT Traversal Solution for SIP-Based VoIP
Author :
Peng Xuena ; Sun Jinshan ; Zhao Hong ; Li Dapeng ; Wen Yingyou
Author_Institution :
Coll. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
Abstract :
Voice over the Internet Protocol (VoIP) is a very popular application nowadays. As an evolving technology, VoIP still faces several problems, one of which is referred as the NAT traversal problem. This problem exists because the commonly used VoIP protocol and NAT are not friendly to each other. Since SIP is the most relevant signaling protocol for VoIP today, this paper focuses on the SIP NAT traversal problem, and proposes an ALG-based SIP NAT traversal solution. A prototype system is also implemented and tested, and the experimental results show the validity of our solution.
Keywords :
IP networks; Internet telephony; signalling protocols; ALG; NAT traversal solution; SIP based VoIP; network address translation; session initiation protocol; signaling protocol; voice over the Internet protocol; Application software; Computer science; Educational institutions; Electronic mail; Information science; Internet; Network address translation; Protocols; Prototypes; Sun; ALG; NAT traversal; SIP; multiple traversal;
Conference_Titel :
Computer Science and Engineering, 2009. WCSE '09. Second International Workshop on
Conference_Location :
Qingdao
Print_ISBN :
978-0-7695-3881-5
DOI :
10.1109/WCSE.2009.775
