What is Internet VoIP?

Communications-voice over IP technology is a system of transmission technologies to deliver voice, video and data over the Internet.

It uses the digital technology, in contrast to the analog technology together with the public telephone network.

Communication with VoIP

VoIP communication uses the Internet to the public telephone system.With a VoIP call, you can communicate from computer to computer, analog phone-phone and phone to phone.

Communication via the Internet to the public telephone lines. Enters into a digital signal to form a series of packets. The package that contains source address and destination data. Analog (voice) are the source of packages.

Hardware communications equipment

Communication with the VoIP devices come various special computer computer communication will be only a phone as necessary for communication.

If a phone VoIP communication, a connection from one computer to a device VoIP gateway is required. In the case of analog communication, special equipment (analog telephone to digital connection) must be used to convert the analog signal into a digital signal.

Quality of service

Quality of service guarantees free.In error that an analog system, a connection is a circuit to a circuit with a continuous connection finish.That start is the voice who hear us on the phone line.

However, VoIP system voice transmission quality interference is one. To fix this, there are a series of protocols ZuUnterstützung of quality for VoIP calls. It comes to PSTN (a protocol for the collection of statistics), SIP (created, modified)Schedule meetings) h. 323 (transfers calls) and MGCP (interacts with telephone Publicsystèmes).