ECMA 344
Private Integrated Services Network (PISN) Inter-Exchange Signalling Protocol Make Call Request Supplementary Service
active, Most Current
| Organization: | ECMA |
| Publication Date: | 1 June 2003 |
| Status: | active |
| Page Count: | 44 |
Document History
ECMA 344
June 1, 2003
Private Integrated Services Network (PISN) Inter-Exchange Signalling Protocol Make Call Request Supplementary Service
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