 | 1 | initial version |
Hard to say without seeing a capture, but in general, SIP and RTP are just the most well-known protocols used to transport VoIP signalling and media respectively. Some applications use their own protocols for the same purpose, and if these are new or obscure enough, Wireshark may not be able to identify them as VoIP-related ones yet. And if they are encrypted, it may never be.
