HIGHLIGHTS
SUMMARY
Collectors of phonecards as a hobby have diversified interests (Tavares et_al, 2021a). The most common cards had pulses of 20, 60, 80, 100, 140, 280, 400, and 680 units with the highest with 1000 units. Telkom Indonesia (Persero) Tbk (Telkom) (=Perumtel) stopped the issues of 20 and 1000 unit cards for the regular or definitive issues. Some advertising cards were still issued at 20 units in 1993 and they may be regarded as promotional. In 1993, the number of card payphones in Indonesia was around 7835 (Kompasiana, 2020). The pioneer phonecard in Indonesia was . . .
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