ITU-T E.183
Guiding Principles for Telephone Announcements - 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 March 1998 |
| Status: | active |
| Page Count: | 9 |
Document History
ITU-T E.183
March 1, 1998
Guiding Principles for Telephone Announcements - 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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