Question

Illustrate the Session Initiation Protocol (SIP) for VoIP in your own words with appropriate diagram.

Answer 1

SIP is simply one of many protocols that can be used to implement VoIP.The SIP (Session Initiation Protocol) is a text based protocol which is similar to the HTTP and SMTP,It is designed for initiating, maintaining and terminating of interactive communication sessions between users. Such sessions include voice, video, chat, interactive games, and virtual reality.

SIP isused in business VoIP to scale communications beyond voice-only calling to support video conferencing, instant messaging, text, and other multimedia communications.It is not the most prevalent protocol.

VoIP with SIP offers the potential for immediate cost savings on business applications by allowing companies to consolidate technologies into Unified Communications.It provides failover to employee mobile devices if data connectivity is lost.It can seamlessly integrate with cloud applications for Unified Communications implementations.

Many companies already use VoIP within their phone system on the LAN to connect to IP phones.SIP trunking also uses VoIP to take advantage of shared lines, such as a company’s Internet connection, to allow more flexibility in communications.Traditional phone systems can be connected using common VoIP gateways to take advantage of SIP trunking and reap the significant cost benefits.