CEI 103-1/4:1991-01
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Internal telephone systems. Part 4: Procedures for telephone services
Amended by
Published date
01-01-1991
Publisher
Superseded date
14-10-2025
Superseded by
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Part 4 indicates the procedures for accessing the basic telephone service and the basic services offered by switching systems (Sec. 1) and, in particular, by intercom systems (Sec. 2), reservation systems (Sec. 3) and switchboard systems (Sec. 4).
| Committee |
CT 305
|
| DocumentType |
Standard
|
| ProductNote |
New child AMD 2 1996 is now added
|
| PublisherName |
Comitato Elettrotecnico Italiano
|
| Status |
Superseded
|
| SupersededBy |
Summarise
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