MySQL is a very powerful open source database.Its provide cost effective database storage solution to its user.MySQL is highly reliable and saclable web based database embedded application. It provide very high quality of performance.MySQL source code is publicly open every one access its source code and customize it according to their needs. Mysql is a main part of LAMP open source web application stack.Most of the open source project whose needed multiple features database often used MySQL database system. Mysql is also available for proprietary use.Different paid edition are available which consist of additional functions.
Electronic-Commerce we usually known as e-commerce is a platform which provide services and product deploying by internet computer networking.We can also say that e-commerce is a virtual online store where customer comes on specif online e-commerce website and buy services and products which they needed.Use of online e-commerce increasing day by day.Those days are not so far when online e-commerce market is the no.1 choice of merchant and customer. Technology has also positively effect on e-commerce and modernized it with the passage of time.
Open source software is a computer software/program whose source code is publicly available with a license.In which copyright holder provide the rights to user to change,study and distribute the software further to anyone and for any purpose.Open source is the most visible example of open source development programme which is compare to open content movement.Open source model is provide the very comprehensive design of software.Because this design was made with effort of different volunteer developer.This design and architecture made very fastly as compare to if company develop alone.
Linux is an open source operating system.Linus Torvald is the founder of this Operating system.system. Liunx was developed in 1991 by Linus Torvalds.But it is not a complete operating system.It is an open source kernel. Different Linux distribution are made by using this kernel. Different Linux distribution combine Linux kernel with other open source
software and make a full operating systems.
GNU General Public License is a free software licence.This is the most widely used licence throught the world.Percentage of using this licence is 25% which is greater than any other open source licence.This licence provide their user freedom to use,share and modify the software.The software which provides these types of freedom is called free software.The user of this licence are individual organizations and companies all over the world.Very important aspect of this software licence is that it provide freedom to their user to cooperate.It allow the user to share their thoughts for fixing bugs and increase the functionality of software.
The Session Initiation Protocol (SIP) is a communications protocol for signaling and controlling multimedia communication sessions in applications of Internet telephony for voice and video calls, in private IP telephone systems, as well as in instant messaging over Internet Protocol (IP) networks.
The protocol defines the methodology of SIP communications and the specific format of messages exchanged for cooperation of the participants in multimedia sessions. SIP is designed to be independent of the underlying transport layer protocol, and can be used with the User Datagram Protocol (UDP), the Transmission Control Protocol (TCP), and the Stream Control Transmission Protocol (SCTP). It is a text-based protocol, incorporating many elements of the Hypertext Transfer Protocol (HTTP) and the Simple Mail Transfer Protocol (SMTP).
In this article we discussed top five open source sip libraries that developers / programmers can use to develop sip based applications .