.Net Charts and Graphs Interact with Businesses and CustomersWritten by Joe Miller
Bar charts, bar graphs, and any other chart or graph used in financial statements, inventory reports, sales reports, a slew of other types of reports have typically been paper reports or online reports depicting various levels of complex information for tracking, investing, planning, and buying. However, until .net graph, .net chart, .net map, and other .net charts came along, relationship between management and company, companies and their investors, and companies and their customers was missing.Interactivity is just one attribute of .net technology, a technology which is spreading across nation as companies recognize it a bridge over gap between them and investors, customers, clients, and their own departments. Using a web-based .net map or chart opens up communication and collaboration between various business demographics. For example, management may want to track a product inventory through a given time period. A .net map can show warehouse locations and inventory levels in real-time. Warehouse managers will be able to track incoming and outgoing inventory, listing information on real-time .net charts and .net graphs. In addition to internal informational tracking, companies can post interactive data for customers, clients, and investors. Perhaps you have already seen how this works with interactive .net maps of states or countries. As mouse moves over counties in state or states in country, information about climate, population, government, agriculture, etc. may pop up. You can even drill down to more specific locations and information by clicking on state or county you want to see. This type of interaction is ideal for students doing research, parents making vacation plans, even businessmen or women making flight reservations. Many airlines, for example, use .net maps to help customers choose their own seats.
| | Security, Stability, and Interoperability Issues on VoIP ImplementationWritten by Al Falaq Arsendatama
Now we have accepted that VoIP is no longer just a phone service, it has become feature rich as it merges with computer configurations. The VoIP's existence has changed considerably over last few years, coupled with availability of broadband connection to Internet, plus leaps in multimedia technology in which virtual operations with remote sites becomes more enhanced, makes VoIP service a viable alternative to traditional communication offerings.Cost savings is not only driving force for VoIP implementations, enterprises have to consider some business aspects that VoIP can bring about. VoIP creates potentials for applications that could not have been done before. Collaboration, integration, and interactivity between employees and applications are one of several business benefits that enterprises can derive from VoIP adoption. Nevertheless, amid euphoria of VoIP technology, there are three important aspects to look at before a company goes VoIP. In following paragraphs I will summarize aspect of security, stability, and interoperability that play a key role in successful implementation of VoIP. 1. Security VoIP implementations may expose new security risks and challenges that somehow become greater concern than quality and cost-efficiency among vendors and users. VoIP networks are vulnerable to all same security risks as traditional IP data networks, including: - Denial of Service (DoS), viruses, worms,
- Toll fraud and unauthorized access,
- Spoofing, and port scanning.
It is recommended that organizations should adopt a layered, defense-in-depth security strategy to address issue with increasing proliferation of new Internet-borne attacks and malicious activities in recent years. In this architecture, network is segmented into secure zones protected by layers of firewall, intrusion prevention, and other security services. This strategy allows organizations to logically split and secure voice and data networks in front of individual voice and data components and between interactive points in network. 2. Stability One of main issues of VoIP is amount of bandwidth required for each call. There must be adequate bandwidth reserved and quality of link must be well maintained throughout each call to ensure users are not affected. As very nature of VoIP call is real-time, any disruption during call would be easily noticeable and unacceptable. The two issues that enterprises usually have to deal with here are bandwidth and quality of service (QoS). VoIP calls need a data transmission speed of 64kb/s to produce quality of voice comparable to that of a normal telephone call. That 64kb/s channel needs to remain open and unaffected for duration of call. Theoretically, VoIP installations would not allow such a huge bandwidth to be allocated for VoIP alone. Therefore, there needs to be a compression taking place to compact voice data into a considerable size before it gets transmitted over a packet switching network. G.723 codec that is incorporated in VoIP standard protocol H.232 can take a 64kb/s stream of data and squash it down to a mere 5.5kb/s or so. Generally, for VoIP to work reliably over WAN links, there has to be low jitter, low packet loss, a considerably high-speed connection between endpoints, and less than 200ms delay.
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