Articles Index
Reasons for Choosing Voice over IP - VoIP Advantages
VoIP Pros - Why should you use VoIP? What are its advantages and how does it make voice communication better than regular PSTN phone? Here is a list of advantages and benefits of using Voice over IP.
Voice over IP - What is VoIP?
Voice over IP - What is VoIP? VoIP stands for Voice over Internet Protocol. It is also referred to as IP Telephony or Internet Telephony. It is another way of making phone calls, though the ‘phone’ part is not always present anymore, as you can even communicate without a telephone set. VoIP is especially popular with long-distance calls.
Mean Opinion Score (MOS) - A Measure Of Voice Quality
Mean Opinion Score (MOS) - Mean Opinion Score (MOS) gives a numerical indication of the perceived quality of the media received after being transmitted and eventually compressed using codecs. MOS is expressed in one number, from 1 to 5, 1 being the worst and 5 the best.
Voice Compression in VoIP
Voice signals in VoIP calls are encoded into digital data, which are compressed so as to make it less bulkier for transmission over the Internet. The software used for compression are called codecs.
Circuit Switching vs. Packet Switching
Difference between circuit switching and packet switching. What are switching and routing, and what are packets? Learn how packet switching makes VoIP better.
IP - The Internet Protocol
IP Protocol - What is the Internet Protocol (IP) and how it works. This article talks about the protocol, IP routing, voice and IP, the TCP/IP protocol suite, IP packets and IP addresses.
IP Routing
IP Routing - Routing is the process during which data packets are forwarded from one machine or device (technically referred to as a node) to another on a network until they reach their destinations.
IP Packets - The Structure of An IP Packet
IP Packets - IP (Internet Protocol) Packets are structure that carry data along over an IP network like the Internet. An IP packet consists of a header, a data payload and a trailer.
IP Addresses - What is an IP Address
IP Addresses - What is an IP address and how does it work? An IP address is a unique address used to locate and identify a device over a network. That device can be an electronic device, a computer, a server, a router or even an IP phone. It is the addressing used for the transmission of data packets over a network working with the IP protocol.
Quality of Service - QoS and VoIP
QoS and VoIP - Quality of Service is an important issue in VoIP service provision. QoS is the differentiation between different types of traffic and classes of service such that one is favored over the other in terms of bandwidth utilization. In VoIP, QoS considerations favor voice traffic.
What Affects Voice Quality in VoIP Calls
Voice Quality in VoIP - There are a number of factors that directly affect VoIP voice quality, namely bandwidth, your equipment, the location of your hardware, weather conditions and compression algorithms. Here is how you can try and get decent VoIP voice quality.
VoIP Cons - VoIP Problems and Pitfalls
VoIP Cons are an issue, although VoIP has great pros. While VoIP's benefits outnumber its disadvantages, you should be aware of the VoIP pitfalls as a user, so that you have a better VoIP experience.
VoiP Codecs
Here is a list of the most common codecs used in VoIP for voice encoding and compression, with comments.
What is a Codec?
VoIP Codecs - A codec is al algorithm used to encode and compress voice signals into digital data, thus making it lighter for transmission over the Internet. VoIP uses codecs for voice transmission.
Three Ways of Making a VoIP Connection
There are three ways in which you can make a VoIP connection: Computer to computer, phone to phone and computer to phone or vice-versa. Let's see these in more details.