SIP :- SIP, or also known as session initiation protocol, has become the standard for multimedia sessions on the internet. The Engineering Task Force thinks of this protocol as the standard for audio, video and even instant messaging solutions. This task force is simply a large, international community, composed of anyone involved in the networking evolution online. SIP is modular, meaning that it can be changed around in whatever way needed. Depending on the type of data your business is wishing to transmit, your SIP deployment will need to be designed specifically for this. With that being said, VoIP and IM communications will need to work around these aspects, and be designed for one total approach. 