About
A field guide to the standards behind mobile networks
01The site
- What it is
- Every published 3GPP specification from GSM Phase 1 to 6G, a glossary, what changed between releases, and what the working groups decided.
- Where it comes from
- Official 3GPP documents, converted and summarised automatically, partly with AI. The specification itself stays the normative text. See the methodology.
- Status
- Independent and unofficial. Not affiliated with or endorsed by 3GPP, ETSI or any standards body.
02The editor
Patrick Zandl
Technology journalist and entrepreneur, writing about mobile networks since 1996. Co-founded Mobil.cz, a Czech news site on mobile communications, later edited Lupa.cz, and wrote books on Wi-Fi networks and Apple’s road to the phone.
03In memoriam
This site is dedicated to three colleagues and friends who were my guides in the world of telecommunications.
Ivan Laška
1938–2010
Engineer and First Deputy Minister of Communications of Czechoslovakia (1981–1991). Co-founded Eurotel Praha, the first Czech mobile operator, and later led GTS in the Czech and Slovak Republics.
Michal Poupa
† 2026
Mobile network engineer. Ran development centres and an operator’s radio network, then taught at CIIRC, Czech Technical University, and worked on 5G security.
Petra Matušínová
† 2017
Mobile network engineer at Nokia Networks from 1996. Helped build Eurotel’s first GSM network, worked in Sweden on one of the first 3G networks, and on networks from Prague to Mexico.