ITU-T E.190
Principles and Responsibilities for the Management, Assignment and Reclamation of E-Series International Numbering Resources - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors Operation, Numbering, Routing and Mobile Services - International Operation - Tones in National Signalling Systems
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| Organization: | ITU-T |
| Publication Date: | 1 May 1997 |
| Status: | active |
| Page Count: | 11 |
Document History
November 1, 2009
Principles and responsibilities for the management, assignment and reclamation of E-series international numbering resources Amendment 1
A description is not available for this item.
ITU-T E.190
May 1, 1997
Principles and Responsibilities for the Management, Assignment and Reclamation of E-Series International Numbering Resources - Series E: Overall Network Operation, Telephone Service, Service Operation and Human Factors Operation, Numbering, Routing and Mobile Services - International Operation - Tones in National Signalling Systems
A description is not available for this item.