Modem pooling system

摘要

In a modem pooling system for enabling selective connection of a plurality of data terminal units 51 to 5n to a modem 9, each of the data terminal units 51 to 5n is detected as to whether active or inactive; one data terminal (e.g. 51) is selected as a responsive terminal unit from among the data terminal units determined to be active in accordance with a predetermined priority order; and the modem 9 is connected to the selected responsive terminal unit (e.g. 51), prior to an incoming call response of the modem 9.