Kamailio is basically an open sourced SIP server which is able to handle a thousand phone calls per second. A SIP (Session Initiation Protocol) server basically deals with all the call setups in a particular network and is the most important part of an IP PBX system. A SIP server is also commonly known as a Registrar or as a SIP proxy. However, it can only carry out the set up of calls and the tear down of calls. It cannot help in transmitting or receiving the audio. (more…)
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