GB250304A - Improvements in or relating to telephone exchange systems - Google Patents
Improvements in or relating to telephone exchange systemsInfo
- Publication number
- GB250304A GB250304A GB5925A GB5925A GB250304A GB 250304 A GB250304 A GB 250304A GB 5925 A GB5925 A GB 5925A GB 5925 A GB5925 A GB 5925A GB 250304 A GB250304 A GB 250304A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- line
- reserve
- lines
- toll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
- H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
- H04M3/523—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing with call distribution or queueing
Landscapes
- Business, Economics & Management (AREA)
- Marketing (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Exchange Systems With Centralized Control (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR597657D FR597657A (enrdf_load_stackoverflow) | 1925-01-01 | ||
GB5925A GB250304A (en) | 1925-01-01 | 1925-01-01 | Improvements in or relating to telephone exchange systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5925A GB250304A (en) | 1925-01-01 | 1925-01-01 | Improvements in or relating to telephone exchange systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB250304A true GB250304A (en) | 1926-04-01 |
Family
ID=9697665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5925A Expired GB250304A (en) | 1925-01-01 | 1925-01-01 | Improvements in or relating to telephone exchange systems |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR597657A (enrdf_load_stackoverflow) |
GB (1) | GB250304A (enrdf_load_stackoverflow) |
-
0
- FR FR597657D patent/FR597657A/fr not_active Expired
-
1925
- 1925-01-01 GB GB5925A patent/GB250304A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR597657A (enrdf_load_stackoverflow) | 1925-11-26 |
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