Which codecs can Wireshark decode without any additional plugins?

Wireshark is a powerful network protocol analyzer that can decode various codec types natively without requiring additional plugins. Among the available options, G711A, G711U, GSM, G729, and G726 are standard audio codecs that Wireshark is capable of decoding out-of-the-box.

G711A and G711U are two variations of the G.711 codec, where G711A (also known as A-law) and G711U (also known as μ-law) provide uncompressed audio for telephony. GSM is a codec widely used for digital mobile communication, while G729 and G726 are also commonly used in VoIP scenarios to compress audio data for transmission. The capabilities of these codecs make them widely recognized in VoIP and telephony standards, which is why Wireshark can decode them without any additional setup.

While other codecs may be available and utilized in various applications, they often require specific plugins or configurations for decoding. Therefore, the correct answer highlights the comprehensive list of codecs that Wireshark can handle natively, emphasizing its capabilities in analyzing and understanding VoIP communications effectively.