Title :
ALEX: improving SIP support in systems with multiple network addresses
Author :
Baldi, Mario ; Marinone, Flavio ; Risso, Fulvio ; Torrero, Livio
Author_Institution :
Dipartimento di Autom. e Inf., Politecnico di Torino, Turin
Abstract :
The successful and increasingly adopted session initiation protocol (SIP) does not adequately support hosts with multiple network addresses, such as dual-stack (IPv4-IPv6) or IPv6 multi-homed devices. This paper presents the Address List Extension (ALEX) to SIP that adds effective support to systems with multiple addresses, such as dual-stack hosts or multi-homed IPv6 hosts. ALEX enables IPv6 transport to be used for SIP messages, as well as for communication sessions between SIP user agents (UAs), whenever possible and without compromising compatibility with ALEX-unaware UAs and SIP servers
Keywords :
Internet telephony; signalling protocols; telecommunication network management; ALEX; Address List Extension; IPv6 multihomed devices; SIP support; dual-stack multihomed devices; multiple network addresses; session initiation protocol; Best practices; Contracts; Intelligent networks; Mobile communication; Mobile handsets; Peer to peer computing; Protocols; Routing; Video sharing; Web server;
Conference_Titel :
Signal Processing and Information Technology, 2005. Proceedings of the Fifth IEEE International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-9313-9
DOI :
10.1109/ISSPIT.2005.1577089
