A codec (Coder/Decoder) converts analog signals to a digital bitstream, and another identical codec at the far end of the communication converts the digital bitstream back into an analog signal. In the VoIP world, codecs are used to encode voice for transmission across IP networks. Codecs for VoIP use are also referred to as vocoders, …
VoIP (Voice over IP) includes communication protocols, technologies and techniques of transmission used for multimedia sessions and voice communication via IP networks. Other terms used synonymously with ‘Voice over IP’ include broadband phone, voice over broadband and Internet telephony. How Does VoIP Work? VoIP calls require media channel setup, analog voice signal digitalization, encoding, packeting …
Any technology that involves transfer of data or information is prone to compromised security. It happens with telephones, cell phones, email and Internet transactions. Because VoIP (Voice Over Internet Protocol) has the Internet as its mode of transference it’s possible to have your Internet-based called intercepted. To make matters worse, there are techno-troublemakers who are …
A VoIP Gateway (Voice over IP Gateway) is a network device that helps to convert voice and fax calls between an IP network and Public Switched Telephone Network (PSTN) in real time. It is a high performance gateway designed for Voice over IP applications. A VoIP gateway can typically support at least two T1/E1 digital …
Every office and small business needs a method of running multiple communication programs such as conference calling, video conferencing, media distribution, instant messaging, and account management software. To perform these tasks, servers need the help of a SIP gateway to bridge the gap between data streams and the Internet. SIP gateways are also essential in …
QSIG is a signaling protocol that is based on ISDN. It communicates signals between private branch exchanges (PBXs) within a Private Integrated Services Network (PISN) using the application-level ROSE and connection-level Q9.31 protocols. QSIG uses ISDN as the physical link layer in the exchanges and is often used in enterprise voice or integrated service networks. …
If you are serious about reselling Voice over Internet Protocol (VoIP) services, there are some questions you will need to ask yourself first. Here are some simple guidelines to help you determine if and how you should pursue your goal of becoming a VoIP reseller. Know the Service If you really want to be a …
Voice over Internet Protocol or VoIP is now recognized as one of the most popular methods of communicating over the Internet. Skype is one of the most popular programs for PC to PC calling with VoIP. Skype allows users to talk to anyone around the world for free. However, there are a few requirements that …
Free VoIP calls are never completely free of cost. Often, the goal is not to achieve completely free calls to all destinations, but to use the VoIP operator that suits one’s needs best. Keeping that in mind, one will learn that most VoIP companies let users talk for free in their own network, but will …
Voice over Internet Protocol (VoIP) is a relatively new technology, because of which individual businesses will need someone who is well versed in the intricacies of VoIP. Companies are often willing to invest in training their IT administrators in VoIP because of the sure returns. But, where do you go to obtain a training course …