ECMA 143
Layer 3 Protocol for Signalling between Exchanges of Private Telecommunication Networks for the Control of Circuit-Switched Calls
inactive, Most Current
| Organization: | ECMA |
| Publication Date: | 1 January 1990 |
| Status: | inactive |
| Page Count: | 164 |
Document History
ECMA 143
January 1, 1990
Layer 3 Protocol for Signalling between Exchanges of Private Telecommunication Networks for the Control of Circuit-Switched Calls
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