Valsts valodas centra izstrādātie transporta, infrastruktūras un sakaru termini

Konteksts: [..] These services, variously known as green numbers, freephone services, cover dial-up services where the caller pays nothing for the call to the number dialled. [..]
Avots: Directive 98/10/EC of the European Parliament and of the Council of 26 February 1998 on the application of open network provision (ONP) to voice telephony and on universal service for telecommunications in a competitive environment