NL28009C - - Google Patents
Info
- Publication number
- NL28009C NL28009C NL28009DA NL28009C NL 28009 C NL28009 C NL 28009C NL 28009D A NL28009D A NL 28009DA NL 28009 C NL28009 C NL 28009C
- Authority
- NL
- Netherlands
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)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3364428A GB325280A (en) | 1928-11-16 | 1928-11-16 | Improvements in or relating to toll switching trunk circuits for telephone exchange systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL28009C true NL28009C (fr) |
Family
ID=10355580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL28009D NL28009C (fr) | 1928-11-16 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB325280A (fr) |
| NL (1) | NL28009C (fr) |
-
0
- NL NL28009D patent/NL28009C/xx active
-
1928
- 1928-11-16 GB GB3364428A patent/GB325280A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB325280A (en) | 1930-02-17 |