4. Call parameters

4.1. Network

4.2. RTP

RTP (Real Time Protocol) is a protocol used to send media streams over networks.

4.3. SIP

SIP (Session Initiation Protocol) is a protocol to establish media sessions over a network. In simpler words, this is the thing that makes the ring at the remote user, starts the call and terminates it when one of the two parties hangs up.

4.4. Codecs

Codecs are algorithms especially designed to compress voice data. For example, digitalised voice in 16bit / 8000 Hz represents a data flow of 128 kbits/second. Using the GSM vocoder, this flow is reduced to 13 kbits/second, without significant loss in quality.

4.5. Audio parameters

In this section you will find parameters related to your sound equipment.