A Wireshark configuration profile for dissecting the ETSI TS 124 301 and TS 136 331 protocols.

Edit > Configuration Profiles > Import > From Directory > ...

Column width must be set manually.

Please feel welcome to contribute back improvements. One area in need of help is identifying whether the packet is Mobile Terminated or Mobile Originating, as gsmtap.uplink is not always set. Colourblind friendly adaptations of the filter colours are also needed. More research into any of the protocols, this profile may not highlight what's significant or not consistently.