Binary-coded decimal: Difference between revisions

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==={{anchor|TBCD}}Telephony binary-coded decimal (TBCD)===
[[3GPP]] developed '''TBCD''',<ref name="3GPP_2013_TS29002"/> an expansion to BCD where the remaining (unused) bit combinations are used to add specific [[telephony]] characterssymbols,<ref name="ETSI_SPS"/><ref name="OpenSS_XMAP"/> with digits similar to those found in [[DTMF|telephone keypad]]s original design.
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