| 摘要 |
The invention relates to a method, a control device and a system for automatically identifying a directory telephone number of a particular telephone line in an access network, for easily creating an inventory system. The access network includes a local exchange (12, 72, 94) capable of serving a plurality of directory telephone numbers and connected to at least one exchange unit EU (14, 54, 96) for supporting through the EU a number of telephone lines. The control device (26, 30, 40, 58, 80) is adapted for telecommunication with the EU, and is provided with a caller identification CLI port (29, 35, 86) of a particular check telephone number (28, 33, 44) assigned in the local exchange. The control device is capable of causing any specific line of the telephone lines belonging to the EU to dial the check telephone number; the check number is operative to automatically identify, by its CLI port, the directory telephone number of the calling telephone line and to associate the identified directory number with the specific telephone line which has dialed the check telephone number. <IMAGE> |
