| 摘要 |
PURPOSE:To select a low charge line for a call from a slave set whose speech time is long by adding a selection number to the call from the slave set selecting the low charge line and sending resulting dial information to the line. CONSTITUTION:When a call processing control means 12 detects an external line dialing, whether or not the dial is a toll dial is discriminated. In the case of a toll dialing, a control means 12 discriminates whether a master set or a slave set receiving a call request is selected for a low charge line by a setting means 15. When set, a low charge line selection means 14 adds a number of a a charge line cat based on the input dial and a dial output means 13 makes a dialing to the line. When a low charge line is not selected, the control means 12 directly sends dial information. Then the low charge line is selected for a call long in the talking time. |
