SIP - (Session Initiation Protocol) is a signaling protocol used to create, manage and terminate sessions in an IP based network. A session could be a simple two-way telephone call or it could be a collaborative multi-media conference session. This makes possible to implement services like voice-enriched e-commerce, web page click-to-dial or Instant Messaging with buddy lists in an IP based environment. SIP has been the choice for services related to Voice over IP (VoIP) in the recent past. It is a standard (RFC 3261) put forward by Internet Engineering Task Force (IETF). SIP is still growing and being modified to take into account all relevant features as the technology expands and evolves. But it should be noted that the job of SIP is limited to only the setup and control of sessions. The details of the data exchange within a session e.g. the encoding or codec related to an audio/video media is not controlled by SIP and is taken care of by other protocols.
by David Cholagh April 19, 2007
Get the SIP-PHONE mug.The act of using one's smart phone to call someone for information you could have looked up on your smart phone by yourself.
Why call the theater for movie times when you could have just looked it up on your smart phone stupid?
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When someone gets a new phone and their texts are indecipherable for a week due to their inexperience with the keyboard.
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Get the razer phone mug.A person who becomes anxious when making a phone call or when someone is calling them, resulting in them screening the call or just texting as a result . Most commonly seen with millennials who much rather text than make or answer a phone call.
"What's with you constantly screening my calls, we were just texting one another?"
"You clearly have PCA (Phone Call Anxiety)"
"You clearly have PCA (Phone Call Anxiety)"
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