Telecom Tech Source

Alert: If you HATE long posts, stop reading and click here . The Session Initiation Protocol, a VoIP protocol, used for originating and termination of media sessions like voice, video, IM, presence etc. Before we enter into the more technical details of SIP, let's refresh our basic telecom VoIP skills. I'd like to insist here that SIP is a signalling protocol, its NOT a media protocol -- which means it is a set of rules use to control the signaling part of a media session. It doesn't have any control on media. So let's not wait to start the basic call flow of SIP. Key terms: It is important to familiarize with these terms in order to understand basic SIP call flow. Here are few of them: Call flow : It's a flow diagram of SIP messages -- shows an ideal way how a media session carried over two endpoints. Its a must know thing and will be useful for your troubleshooting as well. Endpoint: Any device which is used to originate and terminate ...

             The Communication Manager is the Private Branch Exchange [PBX] branded by Avaya. You'll find lot more details whenever you do search on Google. So, you do not need me in explaining the same stuff here. But, I am here to explain MY WAY of understanding about Avaya CM. Lets talk about each component of the image in detail.  Here you go! Summary: * CM is running as an application inside the Linux OS (Red Hat Enterprise Linux) * There are other applications in the Linux help for CM not running within CM * CM is different than Server. CM means the call processing software with Linux where as Server means Platform+CM+other applications * Shell prompt: You can not administer CM features etc * Autosat prompt: You can not perform Linux stuff such as busy-out a server, reboot etc Thanks, Raj 

Hello Everyone, I hope you are all doing well!            I know I am making lot of delay in making this blog more interesting. I believe in Quality rather than Quantity . I am not saying Quantity is having small value. It matters and also carries lot of importance. But instead, I'd say give priority to Quality in the list and then go with Quantity does Make The Difference.             Just let you know all that I have categorized this blog into lot of phases. A phase is something talks unique to a subject. We can call it as a label in terms of Blogger.com. I found this way of labelling gives very easy navigation to all users of my blog. I hope you would like this idea. Following are the labels which I had in mind currently. allAboutSIP            As name already tells, this is the label which talks about SIP and related information. Basically, I'd like to concentrate on the SIP Proto...

                "Procrastination" is the word which I would like to avoid in my WORK every time. But due to the time spent I had with my professional and personal life, I couldn't make any other post till date. Its my mistake. I realize and understood now that its very important to plan in advance about GOALS. So we should plan early, set our goals, stick to them, measure them and take action if not going well. Why Planning?                 I do really care the time I spend for my Professional and Personal life as compared with time I spend on Blog. It means I am knowingly or unknowingly giving more importance to other things rather than on Blog. That's the reason, you did not see any post from me these days. This is all because of poor planning and prioritizing goals. Last Sunday, I spent almost 3 hours of wonderful time in understanding how important planning is. An Idea is a DREAM, until yo...

Hi there - As I mentioned earlier, here I would like to take chance in introducing SIP - a signaling protocol widely used in the current Telecommunications world. SIP is a well known signaling protocol for controlling multimedia sessions  such as voice/video calls over Internet Protocol (IP) networks. SIP - SIP stands for S ession I nitiation P rotocol - It is a very lite signaling communications protocol used for establishing sessions in an IP network. A session could be referred as a simple two-way voice call (or) a collaborative conference multimedia call. - Simply, SIP is a mechanism to establish, modify and tear down the multimedia sessions.  - SIP is a protocol which resembles HTTP ( H yper T ext T ransfer P rotocol) - The reason it became very famous because of its simplicity to program, troubleshoot and integrate. Moreover, it is a open source and referred to RFC 3261. Brief history of SIP - SIP was originally designed by Henning Schulzrinne ...

Hello, I am really excited to launch this "Telecom Tech Source" blog, because this blog is going to be very useful for folks who are looking for more technical help in Telecommunications especially Unified Communications. Coming to me, I had 7 Years of AVAYA Technical Support Experience. I hope you have got an answer by now, why I did chose this kind of blog? Yes, you are right! Still left with plenty of questions in mind about this blog and future posts/pages -- such as: - How to organize the content of this blog? - Is it OKAY if I first start posting about AVAYA EPBX or not? I already wasted lot of time thinking about the content of this blog and the way I organize it. Now, without any delay, I am going to launch this blog first and will make the changes in blog's content to bring a more structured way. I would also seek your feedback and suggestions. With all the help expected from the viewers/readers I am launching this blog. I really appreciate if you co...