The present invention relates to communication techniques, and discloses a method for the calling party to reinitiate a call in card number service, so that the calling party in card number service can conveniently release his current call and reinitiate a new call. A transmission rate recovery request is received from a master device on the network. A plurality of possibly hierarchical, possibly overlapping domains within the document structure is defined. If its contents have remained intact, there is no need for it to be reloaded.