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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