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This Supplement is an information document intended to identify the signalling requirements required to support the International Emergency Preference Scheme (IEPS). IEPS is described in ITU-T Rec. E.106 and allows authorized users to have access to the International Telephone Service while the service is restricted due to damage, congestion, and/or other faults. IEPS capabilities provide authorized users with preferential call and connection handling.
| Author | ITU |
|---|---|
| Editor | ITU |
| Document type | Standard |
| Format | File |
| ICS | 33.040.30 : Switching and signalling systems |
| Year | 2005 |
| Document history | |
| Country | International |
| Keyword | CCITT Q;CCITT Q Supplement 53;ITU-T Q;ITU-T 53;53;ITU-T Q Supplement 53 |