NL18580C - - Google Patents
Info
- Publication number
- NL18580C NL18580C NL18580DA NL18580C NL 18580 C NL18580 C NL 18580C NL 18580D A NL18580D A NL 18580DA NL 18580 C NL18580 C NL 18580C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE231138X | 1924-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL18580C true NL18580C (cs) |
Family
ID=20305696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL18580D NL18580C (cs) | 1924-03-21 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR593120A (cs) |
| GB (1) | GB231138A (cs) |
| NL (1) | NL18580C (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011474B (de) * | 1955-02-21 | 1957-07-04 | Siemens Spa Italiana | Schaltungsanordnung fuer Fernmelde-, insbesondere Fernsprechanlagen zur Verkehrsbeobachtung an einer Gruppe von Schalteinrichtungen |
| DE1011473B (de) * | 1955-03-01 | 1957-07-04 | Siemens Spa Italiana | Schaltungsanordnung fuer Verkehrsmessungen an Gruppen von Schalteinrichtungen in Fernmelde-, insbesondere Fernsprechanlagen |
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0
- NL NL18580D patent/NL18580C/xx active
-
1925
- 1925-02-06 GB GB3450/25A patent/GB231138A/en not_active Expired
- 1925-02-09 FR FR593120D patent/FR593120A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR593120A (fr) | 1925-08-17 |
| GB231138A (en) | 1925-08-06 |