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From word of mouth and the written word through to telegrams and phone systems, modern technologies have been employed to facilitate these information flows. One of the recent developments bridging the gap between communications and data is Voice over Internet Protocol technology, also known as VoIP. VoIP services combine elements of voice communication and telephony with communication paths such as messaging, chat, and collaboration.
Table of contents:
- What is VoIP?
- What is not VoIP?
- What is VoIP Call?
- How Does VoIP Work?
- What are the Advantages and Disadvantages of VoIP
- Top Features of a VoIP Phone System
- How Much Does VoIP Cost
- VoIP Equipment and Hardware
- How to Choose the Best VoIP Provider
What is VoIP?
What does VoIP stand for? VoIP meaning Voice over Internet Protocol or Voice over IP, is a technology that enables the transmission of voice and other communications media such as text and video over an internet connection.
A VoIP phone system first converts a speaker’s voice from audio waves into digital data, then sends that data to its destination via a network connection. If that destination is a regular telephone network, the signal is converted back to a telephone signal before it arrives there.
So what does VoIP mean for users? With the technology operating over the internet and other data networks, one of the greatest advantages of VoIP services is that by leveraging the power of the cloud, VoIP providers like net2phone enable intelligent conversations with customers, suppliers, collaborators, and employees wherever they are located, and using whatever device they prefer.
Types of VoIP Protocol
Transport Control Protocol (TCP): Data packets are connected directly from source to destination and remain connected for the duration of the transfer. Highly accurate and guarantees delivery of packets in their original order.
User Datagram Protocol (UDP): A connectionless protocol which prioritizes speed over accuracy. UDP has no control over errors but is useful for real time VoIP applications where a continuous stream of data is required.
Session Initiation Protocol (SIP): A signaling protocol which informs a VoIP system to initiate, maintain, and terminate communication sessions. Also responsible for defining the format of messages and the sequencing of communication.
Real-Time Transport Protocol (RTP): Used in conjunction with SIP to deliver audio and video over IP. Typically runs using UDP but also employs a Real-Time Transfer Control Protocol (RTCP) to monitor transmission statistics and quality of service.
How is VoIP different than Traditional Phone System?
Rather than relying on a telephone company’s wiring, IP telephony, internet telephony, or web calling converts voice calls and other multimedia content into digital data, which can then be transmitted over the internet, enterprise local area networks (LANs) or wide area networks (WANs). In this way, VoIP technology enables users to make voice and video calls or send various kinds of messages from a computer, mobile device, VoIP telephone handset, or any web browser that supports WebRTC.
Transmit voice data packets via internet
Requires physical hardware such as copper lines to function
Require a steady electrical supply, together with fast and stable network data connections
Needs an analog phone (physical device) connected to PSTN
Maintenance costs are also kept to a minimum because everything is hosted digitally in the cloud
Simple to operate, and most people are comfortable with using them
Offering remote working options is easier than ever as employees simply need to log in from any location and can make and receive calls as if they were in the office.
More secure as there are fewer points of failure, and they are less prone to social engineering type scams
This is quick break down of the main differences between VoIP and Landline phone systems. More detailed explanation, you can find in our guide below.
Related: VoIP vs Analog Phone System