+A phone card is a small card, often prepaid, used to make calls from a [Telephone](/wiki/telephone), especially [Public Phone](/wiki/public_phone) booths. It holds a balance of calling time, offering a bridge to distant voices before mobile phones became ubiquitous.
+## See also
+- [Prepaid](/wiki/prepaid)
+- [Mobile Phone](/wiki/mobile_phone)
+- [VoIP](/wiki/voip)
... 1 more lines