New System for Accounting in International Telephony - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service
| Accuris | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | D.150 |
| Product Name | New System for Accounting in International Telephony - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service |