# Recommendation D.12 (11/1988): Measurement unit for charging by volume in the international packet-switched data communication service

> recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q27051326](https://www.wikidata.org/wiki/Q27051326)  
**Source**: https://4ort.xyz/entity/recommendation-d-12-11-1988-measurement-unit-for-charging-by-volume-in-the-international-packet-switched-data-communication-service