Patent ID: 8199897

Claim:
A call pickup method for a communication network system comprising a first terminal and a second terminal, the method comprising the steps of: (a) setting a common group extension, for the first terminal and the second terminal, in each of the first terminal and the second terminal; (b) transmitting a pickup request message via the common group extension from the second terminal while the first terminal is receiving an incoming call from a third terminal, wherein the second terminal transmits the pickup request message after the first terminal idles for a first predetermined time or after the first terminal rings for a second predetermined time; (c) receiving the pickup request message from the second terminal via the common group extension at the first terminal; (d) transmitting a transfer message related to the pickup request message from the first terminal to the third terminal; (e) transmitting an invitation message from the third terminal to the second terminal; and (f) establishing the incoming call between the second terminal and the third terminal.