Category: Application layer

Real-time voice along with video communication can be attained with the internet standard SIP (Session Initiation Protocol). That was initiated by the IETF (Internet Engineering Task Force) and you can find it in published form from RFC 3261. As for live communications, internet protocol “SIP” is used for establishing voice and video calls and within an IP network, one or more than one participant can whether create, alter, or end sessions with the help of this signaling protocol. It is very important in explanation of the functionality of the VoIP technology as one of the Voice over IP protocols. But at this point of learning about SIP, first you have to understand the term “session” within a communicating network. Actually, it is a clear-cut two-way phone call procedure. But in case of multi-media conference session, it can be consisted on loads of participating persons.

XMPP instant messaging protocol that uses an open systems approach of development and application. It means that anyone who wants can  implement an XMPP service and that will give him the possibility to his app to interoperate with other implementations by other peoples apps.

Application layer is the critical measurement of OSI (Open Systems Interconnection) model which is made up of multiple layers. And SSI (Simple Sensor Interface) protocol works as a trouble free communication protocol for application layer.

Networking protocol “SPDY” is used commonly to transport the web content. It is the shortened form of “SPeeDY”. Google (Google Chrome & Chromium) uses this protocol to promote the open-source project (chromium web browser) protocol in order to improve the functionality of HTTP protocol. Since, speeding up the act of transmission is achieved via compression which is the feature of SPDY. In other words, it is developed to access the Google’s web services via browser, named as Google chrome.

Simple Mail Transfer Protocol – SMTP is used as an internet standard for the transmission of e-mails in case of an IP (internet protocol network) network.