Voice over IP (VoIP)

Voice over IP (VoIP), also known as VoIP telephony, IP telephony or Internet telephony, describes the transmission of telephone calls over the Internet. VoIP enables telephony between computers, tablets and smartphones with Internet access without the need for a stationary telephone or a special telephone system as a starting point. A broadband Internet connection can be used to transmit several calls and their voice signals in parallel via an IP network, and the telephone systems from several locations can be linked together. For example, it is possible for an employee who works from home in Magdeburg to make calls using a landline number from the company's headquarters, e.g. a Berlin landline number.