| 摘要 |
A method for controlling unwelcome communication among a network of users (a) maintains for each user an account to which communication units are credited by the network according to a schedule; and (b) for each user that initiates communication with a respondent user, the network (i) determines whether or not the account of the initiator user holds greater than a predetermined number of communication units; and (ii) when the account is determined to hold greater than the predetermined number of communicating units, deducts from the account of the initiator user the predetermined number of communication units, and allows the initiated communication to proceed.
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