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PCE
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DIFF Subgroup
H04M 15/04

Recording calls in printed, perforated or other permanent form

Introduced: September 1968

Title

Titles differ between systems:

IPC: Recording calls in printed, perforated, or other permanent form

CPC: Recording calls in printed, perforated or other permanent form

Full Title

Full titles differ between systems:

IPC:

Arrangements for metering, time-control or time-indication > Recording calls in printed, perforated, or other permanent form

CPC:

Arrangements for metering, time-control or time indication > Recording calls in printed, perforated or other permanent form

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

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • H04M 15/06 Recording class or number of calling or called party IPC+CPC Available in IPC and CPC