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Author: | Yang, Yang |
Title: | SIP over client initiated connections |
Publication type: | Master's thesis |
Publication year: | 2007 |
Pages: | x + 44 s. + liitt. 3 s. Language: eng |
Department/School: | Tietotekniikan osasto |
Main subject: | Tietokoneverkot (T-110) |
Supervisor: | Ylä-Jääski, Antti |
Instructor: | Tarkoma, Sasu |
OEVS: | Electronic archive copy is available via Aalto Thesis Database.
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Location: | P1 Ark Aalto | Archive |
Keywords: | SIP SIP outbound STUN keepalive backoff mechanism flow token NAT |
Abstract (eng): | SIP outbound as an extension of SIP enables the client initiated connections in SIP signaling system. This feature is desirable in the case of NAT or firewall present between the public and the private side. In such situation, connections are only allowed from the private side to the public side. SIP outbound proposes a mechanism which keeps the client initiated connections between a UA and proxies and later reuses the same connections to push data to the UA from the proxy sides. This mechanism ensures the successful traversal of NAT/firewall. In this thesis we implemented SIP outbound protocol as an extension of SIP and integrated to the WeSAHMI experimental infrastructure and then evaluated the performance of the system as a whole. |
ED: | 2008-02-04 |
INSSI record number: 35227
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