SIP: A routing protocol

Gurbani, Vijay K.; Chiang, Tsun-Chieh; Kumar, Sumit

doi:10.1002/bltj.10

Cited by 6 publications

(5 citation statements)

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“…In the core of a SIP network reside network-based servers, the most important one for our discussion being a SIP proxy server. The main task of a SIP proxy server is to route requests from UAC to UAS based on many factors, including local registration information, DNS, SIP CGI, and SIP CPL [17]. Additionally, SIP proxies can also be used to provide other services, such as authentication of incoming requests and authorization of protected resources identified in the request.…”

Section: B Service Execution In the Internetmentioning

confidence: 99%

Terminating Telephony Services on the Internet

Gurbani

Sun

2004

IEEE/ACM Trans. Networking

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Abstract-We propose a general purpose service architecture for realizing services which start in the Public Switched Telephone Network (PSTN) but terminate and execute on the Internet. We discuss the needs for such services, our early research efforts in this direction which lead to prototyping certain benchmark services, and the current state of work in this area. We demonstrate the feasibility of the architecture by focusing on services which involve wireline PSTN as well as the wireless aspects (2 G, 2.5 G) of the PSTN. Our methodology is attractive since it keeps each of the domains (PSTN and Internet) unaware as to where the service is executing with respect to which domain actually requested the service. Individual entities participating in the service do not have any knowledge that external entities from another domain also contributed in the execution and fulfillment of such services. Our approach, as embodied in the service architecture, is to leverage the best of the Internet protocols (SIP, XML, HTTP) and technologies (instant messaging, presence) to provide a general framework for personalized service specification and execution.

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Section: B Service Execution In the Internetmentioning

confidence: 99%

Terminating Telephony Services on the Internet

Gurbani

Sun

2004

IEEE/ACM Trans. Networking

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“…Proxy servers are the routers in a SIP network [7]. Traditional SIP networks have stateless proxy servers in the core of the network and the stateful servers toward the periphery of the network.…”

Section: Proxy Serversmentioning

confidence: 99%