Invention Grant
US08194645B2 System for blind/attended transfer in session initiation protocol (SIP)-based network and method of controlling the transfer
失效
基于会话发起协议（SIP）的网络中的盲/挂接传输系统和控制传输的方法
- Patent Title: System for blind/attended transfer in session initiation protocol (SIP)-based network and method of controlling the transfer
- Patent Title (中): 基于会话发起协议（SIP）的网络中的盲/挂接传输系统和控制传输的方法
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Application No.: US11826359Application Date: 2007-07-13
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Publication No.: US08194645B2Publication Date: 2012-06-05
- Inventor: Joo-Hong Lee
- Applicant: Joo-Hong Lee
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2007-0006110 20070119
- Main IPC: H04L12/66
- IPC: H04L12/66
Abstract:
A method for controlling blind/attended transfer in an SIP-based network includes: transmitting, by an SIP-based terminal, a call request message to a third terminal, which is an object of a call transfer, after pausing a communication with a second terminal by transmitting a call waiting message to the SIP server; determining, by the SIP-based terminal, whether a call transfer function (Hook on) has been activated prior to receiving a call response (200OK) signal from the SIP server; and performing, by the SIP-based terminal, the blind transfer with the third terminal by transmitting a call transfer message (REFER) to the SIP server upon the call transfer function (Hook on) being activated prior to receiving the call response message from the SIP server. The SIP-based terminal processes the blind/attended transfer using one input, thereby providing convenience to a user.
Public/Granted literature
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