IPC Subgroup
H04M 1/27495 implemented by means of discrete electronic components, i.e. neither programmable nor microprocessor-controlled
Introduced: January 2020
Full Title
Substation equipment, e.g. for use by subscribers > Devices for calling a subscriber > Devices whereby a plurality of signals may be stored simultaneously > with provision for storing more than one subscriber number at a time > using static electronic memories, e.g. chips > implemented by means of discrete electronic components, i.e. neither programmable nor microprocessor-controlled
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TELEPHONIC COMMUNICATION
Scope Notes
Limiting references: Management of directories Sorting, e.g. according to history or frequency of use Methods of retrieving data Appending a prefix or inserting a pause to a dialling sequence Automatic call origination and retry systems