1. To comply with the national criteria and standards of Numbering Plans (ITU-T ).
2. To be valid and stable for the longest period of time (25 years).
3. To cause the least changes possible (Smooth Transition).
4. To be in congruence with the future growth of telecom services (VoIP, E-Num, Number Portability).
5. To set a clear numbering system to facilitate calls between users (Tariff, Position).
6. To set up a Numbering Pricing system, that would increase national income.
|