How well do you know VOIP Protocols ?

   

    In computing , a protocol is a set of rules used by computers to communicate with each other across a network. It sets a standard that controls or enables the connection, communication and data transfer between computing endpoints.

  For example, HTTP and HTTPS are protocols used for communications over the Internet.

 Similarly, VOIP also communicates using standard protocols and they are;

  H.323 Protocols :

       H.323 is an umbrella recommendation from the International Telecommunications union ( ITU ).
It defines the protocols to provide audio-visual  communication sessions on any packet network. The H.323 standard address call signaling and control, multimedia transport and control and bandwidth control for point-to-point and multi-point conferences.

SIP Protocols:

    Session Initiation Protocol (SIP) is a signaling protocol. It is used for controlling multimedia communication sessions such as voice and video calls over IP. Other feasible applications of SIP include video conferencing, streaming multimedia distribution, Instant messaging and online games.

Proprietary Protocol:

    Proprietary protocols is a communications protocols owned by a single organization or individual. Proprietors may enforce restrictions through patents and by keeping them trade secrets. The restrictions are intended to give the owner complete control of the protocol. 

The most common protocols are SIP and H.323.