>X.25, just like the original Janet.
Well with a decent update, a CONS network service has much to offer particularly if QoS is important...
Although, a downside of X.25 was the by the byte/octet billing....
Sending 5 floppy disks (1.44MB) of data London-Montevideo over X.25 in the early 1990's, cost more than sending a courier on a first class return flight, plus overnight hotel. For some reason, we got sign off for the X.25 transfer, not for the flight...
