Voice over Internet Protocol (VoIP)
VoIP is an acronym that means Voice over Internet Protocol. Simply put, it is an option that people may take if telephone communication is not practical, accessible or affordable. The difference between telephones and VoIP communication is in the way audio signals are transmitted. Telephones make use of analog signals while VoIP technology relies on digital packets.
When one makes a phone call, circuit switching comes into play. This involves passing analog-converted audio signals from one switch to another until it reaches the recipient. Answering a call is the final step to opening the circuit of communication.
VoIP communication does not use circuit switching. It instead relies on the switching of packets. Audio is converted to packets of digital information. These carry additional information on message destination. Packets can then be sent through many different paths to reach the recipient. The nearest available path is taken. Once the packets reach their destination, they are converted back to audio data.
VoIP communication can be an attractive alternative to a lot of people. This is mainly because it is often cheaper than telephone communication. Circuit switching which is used for telephones can be expensive. Aside from cost savings, VoIP communication is also often more accessible. Not every part of the world has a telephone. VoIP however can be used wherever there is an internet connection. These days, the internet can be accessed even in remote areas through satellite technology.
Sudoku
Sudoku is a number placement puzzle game based on logic rather than mathematics. It challenges the ability of my reflection and logical mind. Despite seemingly impossibility, the puzzle can be solved through persevering effort and imperturbable approach.
Effective goals
Goal setting is depending on individual involved and must be challenging, realistic and attainable. Achieving goals is predicated upon motivation. To set a slight difficulty of goal will drive you to be severe with yourself and make you strive for success, whereas extreme difficulty may wipe your wills out.
A Goal has to be specific and measurable. It gives you direction; tells you what needs to be accomplished. Goal increases effort, persistence and the quality of performance so that you would know what to work toward, when you have finished and achieved your preset goal. If there is no clear way to tell, you would not know when to stop.
Any usable and performable goal must have a clear timeframe of when it should start and when it should end. Without a timeframe associated with a goal, it is practically impossible to say if the goal is reached or not. A deadline creates a sense of importance, which leads to greater dedication and persistence towards your goal.
Positive goal directs what to do rather than what not to do, whereas negative goal directs your attention to the errors you wish to avoid or eliminate, and it brings you the vague hopes. Positive goal requires you to decide how you will reach those specific goals. Once the goal is firm, you must determine specific strategies and techniques which allow that goal to be successfully attained.
