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1: AND and OR connection 

1: AND and OR connection 

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Figure 1: Negoisst contract model [JS05b] 
Figure 1: 3-level pyramid of degree of VoIP utilisation Subsequently,...
Figure 2: COSMOS contract model [MGB99] 
Figure 3: Negoisst negotiation protocol [SJL03] 
+5 Figure 4.1: AND and OR connection 
Voice over IP - Infrastructure vs. Market Service?
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  • Jan 2006
Voice over IP is a new communication technology. Today it is mainly utilized as a new infrastructure for telephony. It can be integrated in services, adapted to support business processes. In this paper we analyze the adop- tion and diffusion process of VoIP technology. Our goal is to find out whether Voice over IP is "just another infra- structure...
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Citations

... Considering here in this case which is average arrival rate, is lower than the average service rate, in case of this λ<μ; otherwise, it would have an overflow situation. If it seemed to that the service time is exponentially distributed, in addition to packet arrival being Poissonian, [12] [14] then the average delay ,τ, can be given by the following formula, which can be derived from the M/M/1 queuing model. [15] Considering the average packet size is κ Megabits, and if the packet size is exponentially distributed then there is a simple relation between the link speed c (in Mbps) and the average packet size κ, and the packet service rate μ, which can be described as: ...
Portable PABX system for video calling through developping Bandwidth optimization Technique (2)
Thesis
  • Jan 2015
Now is the age of information technology. World is advancing day by day. For this progressing world communication from one place to another become so easy, less costly, and faster. This modern life is almost impossible with the help of these communication technologies. People need to talk, need to share data, need to express their emotion from long distance. So they need to use technologies for communicate with one another. But nowadays people prefer video calling than voice call. They divert to video calling most instead of voice calling. Some software like Skype, Yahoo, Gtalk, msn is used for voice and video call. But these software uses high capacitive of bandwidth, internet speed. This system entitled as “Portable PABX systemfor video calling” that works through only server, web cam and softphones. With this system people can make video call using low internet speed.It has unique extension number that gives access to the parties within a communicating session. It is possible to make video call through this system with lower cost and lower internet speed independent on operating system. The main advantage of this system is the portability of the system. It can run on both Linux and Windows operating system that makes it special. This system mainly implemented on telecommunication sectors like call center, mobile phone customer care center. It also implemented in security issue like CCTV camera. Finally, this system is better because it has the ability to make calls in different extensions also has the ability to show video calling with conferencing, web conferencing and presentation articles at a time within a conference session. All the work is implemented and shown.
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