Abstract: A signal source mobility status method includes: obtaining, at an apparatus, at least one identifier that is associated with one or more devices including a signal source that is configured to transmit wireless signals and whose mobility status is unknown to the apparatus; and determining, at the apparatus based on the at least one identifier, whether an expected mobility status of the signal source is mobile or stationary.

Abstract: A system for dynamic currency conversion is provided. The system includes a bank identifier system determining whether currency conversion is available for a card-issuing bank of a presented card, such as by comparing a bank identifier from the card with a list or table of participating banks. An exchange rate system determines whether an exchange rate has expired, such as an exchange rate associated with the foreign currency of the card-issuing bank. The card holder is presented with an option for selecting a foreign currency transaction after it is determined that currency conversion is available for the card-issuing bank and that the exchange rate has not expired, such that the card holder does not need to see such information unless foreign currency processing is available.