| 摘要 |
A method comprises establishing a first telephone connection between a first telephone line and a second telephone line via a switch; detecting by the switch entry of a service code from the second telephone line, the service code indicative of a request to transfer the telephone connection from the second telephone line to a third telephone line, the second telephone line and third telephone line being associated with a single user; calling the third telephone line in response to the detection of the service code; detecting whether the third telephone line has been answered; and establishing a second telephone connection between the first telephone line and the third telephone line, if the third telephone line is answered.
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