VoIP Schweiz: VoIP, wie funktioniert das?
VoIP Switzerland: VoIP, how does it work?
The connection with VoIP technology is the connection via the DSL router or a VoIP-capable cable modem with the broadband connection of the Internet. To establish the connection, the SIP (Session Initiation Protocol) is required with a SIP address, which is used for identification. With VoIP Switzerland, the VoIP application also digitizes the audio signal recorded with a microphone. The telephone call data is sent in the form of data packets via an Internet line. The coding (codec) used is decisive for the voice quality. After transmission, the data is decoded and converted back into speech. Here, delay fluctuations (jitter) are also decisive for the voice quality of the telephone.
