THE Wireshark is an open-source tool that allows you to capture and analyze network traffic in real time. It supports a wide variety of network protocols and its usefulness goes beyond diagnosing connectivity issues, making it an important resource for network optimization, including VoIP.
In context VoIP, the Wireshark provides in-depth insight into protocols SIP (Session Initiation Protocol) and RTP (Real-time Transport Protocol) to diagnose and solve problems. In SIP, allows for the rapid identification of problems – from negotiation failures to issues related to protocol configurations. In RTP, allows you to diagnose possible sound problems, such as the famous unidirectional audio1, as it offers the functionality of playing streams audio.
In the section “Telephony”, you can choose the filter VoIP Calls, which allows us to isolate the relevant packets for the Troubleshooting VoIP, This simplifies analysis and speeds up the resolution process. It's possible to check the call route and its signaling.
In this section, it is also possible to choose the option RTP Streams, which allows us to audit the conversation and identify possible anomalies between the two terminals.
Wireshark stands out as an indispensable tool for troubleshooting – not only locally, but also on the RCTS network. VoIP -, providing proactivity in resolving existing problems and anomalous patterns after regular network captures.
1One-way audio (One-Way Audio): Refers to a situation where the audio of a communication is transmitted in only one direction.
