I’ve recently developed a straightforward yet, in my opinion, a quite handy tool for network troubleshooting. This tool simplifies the process of obtaining tcpdump from your AWS ECS tasks or EC2 instances directly from your desktop, all in one place!

Probably you have updated your iPhone iOS recently to version 17 and the only thing that in the first place you have recognized, it was the phone screen when someone calls you. You can find a Voicemail icon that represents the new Live Voicemail feature.

Caption: Photo courtesy of John Downer Productions

Lawful Interception (LI) standard play a crucial role in enabling lawful interception activities by authorized entities for security and intelligence purposes. These protocols allow the interception and monitoring of communication services while adhering to legal requirements. If you’re involved in IMS/mobile core or other telephony networks development, or communication analysis and security, you’ll find a dissector besides Wireshark be an invaluable addition to your toolkit. In this blog post, I’ll introduce you to x2x3PduDissector, a powerful Lua-based Wireshark dissector for analyzing LI (X2/X3 PDU Format) packets.

If you are testing an NG911 IMS call, one of the most important pieces of info that the NG911 network (including LRF, NGCS, PSAP, …) expects from your SoS SIP INVITE is the P-Access-Network-Info or PANI header. This header carries the information about the UE/Subscriber device location.

Ever faced the challenge of deciphering RTP packets nested within another protocol PDU? 🤔 I found myself in this exact situation today. Amidst the lack of a specialized protocol decoder in Wireshark, I decided to roll up my sleeves and craft a nifty RTP packet decoder and encoder using Python.