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Voice over IP telephony is largely based on the SIP protocol, but also on RTP, SRTP and other technologies such as network technology.

In this section we want to give you some information about the used techniques, protocols, codecs and co. to give you the opportunity to get information according to your own knowledge, which you are still missing to understand this quite complex topic.

→  Please read this article to get a first impression and a short overview of the topic: Basics of VoIP