CEPT - T/CS 49-12 E
System L2 Signalling on Extra Long Lines between a Telephone Instrument or Equivalent and a Public Exchange or a PABX
active, Most Current
| Organization: | CEPT |
| Publication Date: | 1 January 1986 |
| Status: | active |
| Page Count: | 10 |
Document History
T/CS 49-12 E
January 1, 1986
System L2 Signalling on Extra Long Lines between a Telephone Instrument or Equivalent and a Public Exchange or a PABX
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