In a short message service (SMS) wireline/wireless message system, a separate SMS exchange server linked to a multi-party concurrence server implements a value-added service capability to achieve multi-party concurrence. The basic function of the multi-party concurrence operation is that of changing the contents of a data structure in the server based on the responses received from two or more members. The concurrence operation has many applications, such as, the transfer of money to an account only if two or more persons agree to the transaction.