| 摘要 |
Automatic calling connection method achieves a connection between a subscriber of one electronic exchange and a subscriber of another electronic exchange by only using a software without adding a hardware, and providing a more convenient and useful service to the user. When a subscriber of one exchange calls another subscriber of another exchange, the method registers automatic calling connection service when the another subscriber is on the telephone, and automatically connects between the one subscriber and the another subscriber when the another subscriber stops his telephone communication.
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