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PCE
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DIFF Subgroup
H04Q 3/72

Finding out and indicating number of calling subscriber

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Selecting arrangements > Finding out and indicating number of calling subscriber

CPC:

Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Finding out and indicating number of calling subscriber

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • H04Q 3/74 Identification of subscriber calling from a party-line IPC+CPC Available in IPC and CPC