IMS

VoIP (Voice Over IP)

Most of basic SIP protocol goes as the combination of the procedures explained above. This shows an example showing the interplay of these procedures.

If you see the following sample sequence, you will find various example ranging from very simple and pretty much complicated ones.

http://www.rfc-editor.org/bcp/bcp75.txt

Following Wireshark capture is the one that I captured using the test configuration described in previous section. (I you want the full capture file (pcap file) for this, send me an email).

Following is the filtered log showing only signaling part of VoIP calls that I did.

Following is the one showing both signaling part and data traffic parts showing various protocols being used in media transfer.