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Showing posts from March, 2015

LESSON 3: PROXY SERVER

Thanks everyone for the amazing response on the blog ! In the last post, we discussed SIP SYSTEM ARCHITECTURE. Now, I hope you know “ understanding SIP” means not just knowing about Protocol. Every component mentioned in the architecture plays a vital role of its own. I have already reveal the secret of each component what it does. Now, in this post and further, we will be dealing each component a bit deeper. So, today's component is Proxy Server. RFC 3261 says: SIP proxies are elements that route SIP requests to user agent servers and SIP responses to user agent clients.  A request may traverse several proxies on its way to a UAS.  Each will make routing decisions, modifying the request before forwarding it to the next element.  Responses will route through the same set of proxies traversed by the request in the reverse order. Why do we need it? The actual question should be why do we need a proxy server if two UAs able to communicate each ...

WORDS OF LIFE: KNOW THE DIFFERENCE AND MAKE THE DIFFERENCE

Today's blog is all about "words of life". If you know the difference of understanding these words, then I surely can say that you can make the difference. You can make the difference, if you start seeing them different. Enough of saying 'differences' , let me take you to the actual content what I would like to take you through. Before we enter the post....What is this topic about? Why am I posting this?  Allow me to explain. Understand this, out of this telecom world, I am a common man who always wish to Make The Difference wherever I am interested in. The way we have grown, in our childhood and then later, makes lot of impressions in our mind and becomes "belief" while time flies.  At times you see these impressions, instead I'd call them beliefs, limit them knowingly or unknowingly. Every person in the world come  across  them. So, I am also a person with lot of beliefs. We can call these beliefs (or) principles as "Tenets...