VOIP PROTOCOL SIGINIFICANCE

VOIP(VOICE OVER INTERNET 

PROTOCOL)

One of the widely used protocol is voip on the internet.

                

 VOIP:

Voip  stands for voice over Internet protocol.

VOIP  IS ADVANCED NEW TECHNOLOGY.

VoIP basically means voice transmitted over a digital network. 

The Internet, however, isn't strictly necessary for VoIP. 

What is necessary for VoIP technology is the use of the same protocols that the Internet uses. 
(A protocol is a set of rules used to allow orderly communication.)

 *Thus, voice over Internet protocol means voice that travels by way of the same protocols used on the Internet.

*VoIP is often referred to as IP telephony (IPT) because it uses Internet protocols to make possible enhanced voice communications. 

*The Internet protocols are the basis of IP networking, which supports corporate, private, public, cable, and even wireless networks. 

*VoIP unites an organization's many locations — including mobile workers — into a single converged communications network and provides an unparalleled range of telephony support services and features .

VOIP:

                          video regarding voip basics and how they actually used.

Voice-OVer-IP(VOIP)  implementation allows to enable users to carry  voice traffic(ex:telephone calls and faxes) over  an ip network.

VOIP is mainley used as it provides:
>less cost phone calls.>Addon services and unified messsaging.>Merging of data/voice infrastructures.  

Following are some of the voip  protocols:

*Megaco           H.248 gateway control protocol.

*MGCP            Media Gateway Control Protocol.

*MIME             Multi Purpose Internet Mail Extension.

*Rv over IP       Remote Voice protocol Over IP Specification.

*SAP v2            Session Announcement Control.

*SDP                 Session Description Control.


*SGCP             Simple Gateway Control Protocol.                

*SIP                 Session Installation protocol.


*SKINNY        Skinny Client Control Protcol(SCCP).

VOIP  uses Vlan network.

VOIP SETUP:   IS DONE BY VLAN. Setting up VOIP connection: VOIP TELE PHONE->  SWITCH->    SWITCH-> VOIP PHONE.   voip phones works on ip and when dailed from voip the corresponding informaton is passed from one switch to the other and then received by other voip phone.