The GSM spec is some years older, because you need time to built networks and phones based on it.
In Germany GSM started 1992, and we already had a decent state-wide analog mobile phone network (mostly car phones because of the hardware requirements), called "C net" This was popular since the 80ies and only shutdown in 2000, when GSM was widely established with three private networks (and also cheaper then).
Gotta love the German creativity in naming. It's called "C Net" because that came after "B Net", which came after "A Net". While "A" apparently stood for "Autotelefon" (car phone).
And when D-Net came, T-Mobile called their service D1, and Vodafone called theirs... D2.
qwertfisch|4 days ago
netsharc|4 days ago
And when D-Net came, T-Mobile called their service D1, and Vodafone called theirs... D2.
medi8r|4 days ago