Results 1 - 10 of 168

SIP Infrastructure Performance Testing

by Miroslav Voznak, Jan Rozhon - In Proceedings of the 9th WSEAS International Conference on TELECOMMUNICATIONS and INFORMATICS
"... Abstract:- This paper deals with a testing method suitable for SIP infrastructure. The performance testing is an issue of research and no standardized methodology has been adopted yet. We present the main ideas of our method that have been verified on open source software PBX Asterisk, as a represen ..."
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Abstract:- This paper deals with a testing method suitable for SIP infrastructure. The performance testing is an issue of research and no standardized methodology has been adopted yet. We present the main ideas of our method that have been verified on open source software PBX Asterisk, as a

Unleashing the power of wearable devices in a SIP infrastructure

by Arup Acharya, Stefan Berger, Chandra Narayanaswami - In 3rd IEEE International Conference on Pervasive Computing and Communications (PerCom) 2005, Kauai , 2005
"... The Session Initiation Protocol (SIP) has been widely adopted for Instant Messaging (IM) and VoIP telephony both by the enterprise and in service provider systems. Till now, SIP functionality has been accessible to endusers primarily via computing platforms such as an IM client on a laptop or on com ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
or on communication platforms such as an IP Phone or a cell phone. We show that wearable devices such as the IBM Linux Watch (WatchPad TM) can play a powerful role as a control device in a SIP infrastructure, given their easily accessible, always available, and visible user-interfaces. We have designed and prototyped

A cooperative sip infrastructure for highly reliable telecommunication services

by Ali Fessi, Heiko Niedermayer, Holger Kinkelin, Georg Carle - In ACM conference on Principles, Systems and Applications of IP Telecommunications (IPTComm , 2007
"... Voice over IP (VoIP) has been a promising technology for several years. Although it has become very popular, the vision to substitute the “good old ” Public Switched Telephone Network (PSTN) is still far from being true. Several issues, such as security, reliability and emergency calls are slowing d ..."
Abstract - Cited by 8 (0 self) - Add to MetaCart
. P2P networks provide self-organization and scalability. Recent work involved P2P-based signaling for lookup services for Voice over IP (VoIP) communication based on the Session Initiation Protocol (SIP). The main motivation behind P2P-basd SIP is to support ad

Real-time monitoring of SIP infrastructure using message classification

by Arup Acharya, Xiping Wang, Charles Wright, Nilanjan Banerjee, Bikram Sengupta - In Proceedings 3rd annual ACM workshop on Mining Network Data (MineNet , 2007
"... Session Initiation Protocol (SIP) is a control-plane protocol for multiple services such as VoIP, Instant Messaging and Presence, and in addition, is key to IP Multimedia Subsystem (IMS). A SIP message consists of plain-text headers and their corresponding values, which are used to route the message ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
Session Initiation Protocol (SIP) is a control-plane protocol for multiple services such as VoIP, Instant Messaging and Presence, and in addition, is key to IP Multimedia Subsystem (IMS). A SIP message consists of plain-text headers and their corresponding values, which are used to route

A Service Oriented SIP Infrastructure for Adaptive and Context-Aware Wireless Services

by unknown authors
"... Due to the variety of widespread network communication technologies, a user has more possibilities to access various services. However, having alternative networks and services does not bring ease to the user immediately, but often results in increased burdens in terms of repetitive configuration an ..."
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which exploit their awareness of the user's context. In this paper, we propose a service-oriented context infrastructure, to simplify the exchange of context among services, thus facilitating users and applications access of services in an efficient way. The Session Initiation Protocol (SIP

An Efficient Micro-Mobility Solution for SIP Networks

by Dimitra Vali, Sarantis Paskalis, Alexandros Kaloxylos, Lazaros Merakos
"... SIP is evolving as the dominant protocol for multimedia call control in IP networks and is expected to be widely deployed in the near future. Using SIP for supporting mobility in SIPbased networks appears as a very attractive alternative to Mobile IP, taking advantage of existing SIP infrastructure ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
SIP is evolving as the dominant protocol for multimedia call control in IP networks and is expected to be widely deployed in the near future. Using SIP for supporting mobility in SIPbased networks appears as a very attractive alternative to Mobile IP, taking advantage of existing SIP infrastructure

Session Initiation Protocol (SIP)-based infrastructure against

by unknown authors
"... Abstract—This paper presents a novel mechanism to protect ..."
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Abstract—This paper presents a novel mechanism to protect

Optimizing sip service provisioning in internet connected manets

by Marcel C. Castro, Andreas J. Kassler - In International conference on software in telecommunications and computer networks , 2006
"... gained a lot of attraction because they are flexible, self-configurable and fast to deploy. Systems beyond 4G are likely to consist of a combination of heterogeneous wireless technologies and naturally might comprise MANETs as one component. In order to provide multimedia services such as Voice over ..."
Abstract - Cited by 4 (0 self) - Add to MetaCart
over IP in such environment, support for Session Initiation Protocol (SIP) is essential. A MANET is a decentralized collection of autonomous nodes but a SIP infrastructure requires centralized proxies and registrar servers. In this paper, we first study the implications of using standard SIP

Distributed Service Discovery and Session Initiation using SIP

by Manuel Graber, For Manets , 2005
"... The Session Initiation Protocol (SIP) is a signalling protocol for Internet con-ferencing, telephony, presence, event notification and instant messaging. Unfor-tunately, SIP cannot be used in Mobile Ad hoc Networks (MANETs) directly because it relies on centralised services which conflicts with the ..."
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, the centralised part of the SIP infrastructure can be replaced by a distributed counterpart. In order to tackle the DSD problem different existing approaches are stud-ied. The fully distributed approach to DSD is found to be the most promising one. Analogously to MANET routing protocols, DSD using a fully

Ubiquitous computing using SIP

by Stefan Berger, Henning Schulzrinne, Stylianos Sidiroglou, Xiaotao Wu - In ACM NOSSDAV 2003, June 2003. [DVC+ 01] [FAS01] [FG03] [FN01] Ashutosh Dutta, Faramak Vakil, Jinghu Chen, Miriam Tauil, Shinichi Baba, and Henning Schulzrinne. Application , 2001
"... In the past decade, there have been numerous efforts in ubiquitous computing, making computational resources or communication more widely available. We believe that it is time to move to a global-scale ubiquitous computing system that is securable, administered by multiple independent administrators ..."
Abstract - Cited by 17 (1 self) - Add to MetaCart
administrators and integrates off-the-shelf hardware and software. We are developing such a system based on the Session Initiation Protocol (SIP), with Bluetooth devices for location sensing and Service Location Protocol (SLP) for service discovery. We also introduce context-aware location information to augment
Results 1 - 10 of 168