Web definitions for calling card

Definitions of calling card on the Web:
a physical support, often in the form of a wallet-sized card made of plastic or paper, which contains contractual information as to using postpaid or prepaid long distance services from the calling card provider. Calling card based long distance, a form of dial-around, is a two-step method for selecting a long distance service provider on a call-by-call basis. The caller first dials an access number to enter the non-PICed service provider’s network, then dials the destination number from within that service provider’s network.www.crtc.gc.ca/dcs/eng/glossary.htm
Many telephone operators issue calling cards, which have an appearance similar to that of a credit card, and which allow a call to be made from any telephone in that country, and often other countries, with the charge for the call being charged to the calling card instead of the phone from which the call was made.www.voiceanddata.com.au/vd/admin/glossary.asp
A Calling Card enables customers to place local and long distance calls while away from their home and bill them to their telephone account.www.egh.com/Glossary.html
A service that allows calls made from any telephone to be billed to a different telephone or credit card account. GO TO – CALLING CARDwww.bluebelltelecom.com/pages/gloss1.htm
a telephone card providing authority to charge calls to a specific credit account set up for the purpose.www.gbc.hu/english/bszotare1.htm
a card that is used instead of cash to make telephone calls
a printed or written greeting that is left to indicate that you have visited
a distinguishing characteristic or behavior; "bombs are a terrorist's calling cards" www.cogsci.princeton.edu/cgi-bin/webwn
Calling Card may refer to various object of the same name: * Historically, a calling card was used socially to signify a visit made to a house if the occupant were absent; or as an introduction for oneself (to new neighbours as an example). In this sense they are also known as visiting cards. Business cards are evolved from this sort of calling card.*Calling Card (crime)*Telephone card en.wikipedia.org/wiki/Calling_card
A calling card is a particular object frequently left behind by a criminal at a scene of a crime, often as a way of taunting police or obliquely claiming responsibility. en.wikipedia.org/wiki/Calling_Card_(crime)