| 摘要 |
PURPOSE:To enable the multiple connection regardless of the types of trunks to be connected to the subscriers and thus to enhance the service, by storing directly the PB receiver into the terminal of the network. CONSTITUTION:When subscriber SUB has off-hook with the service of the PB- class, outgoing registor trunk ORT is connected. At the same time, PB receiver PBREC which is connected directly to the incoming or outgoing terminal of network NW is selected and then connected in multiplication to the channel of SUB-ORT. As a result, the PB signals supplied from SUB can be received via no trunk. |
