ITU-T - E.152
International Freephone Service (IFS) - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service
inactive
| Organization: | ITU-T |
| Publication Date: | 1 January 1989 |
| Status: | inactive |
| Page Count: | 38 |
Document History
May 1, 2006
International freephone service
A description is not available for this item.
January 1, 1996
International Freephone Service - Telephone Network and ISDN Operation, Numbering, Routing and Mobile Service (Study Group 1) 29 pp
A description is not available for this item.
E.152
January 1, 1989
International Freephone Service (IFS) - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service
A description is not available for this item.