An information processing terminal includes: circuitry to receive from a management system via a network, a candidate identifier of each one of one or more candidate counterpart information processing terminals that are previously registered for the information processing terminal; and to determine, in response to acceptance of an identifier that has been input, whether the accepted identifier matches any one of the candidate identifiers being received. Based on a determination indicating that the accepted identifier matches any one of the candidate identifiers, the circuitry transmits to the management system first request information requesting to start communication with the candidate counterpart information processing terminal identified with the accepted identifier. Based on a determination indicating that the accepted identifier does not match any one of the candidate identifiers, transmit to the management system second request information requesting to start communication with a counterpart information processing terminal identified with the accepted identifier, the circuitry transmits the second request information including destination information that differs from destination information included in the first request information.