发明名称 System for blind/attended transfer in session initiation protocol (SIP)-based network and method of controlling the transfer
摘要 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.
申请公布号 US2008175229(A1) 申请公布日期 2008.07.24
申请号 US20070826359 申请日期 2007.07.13
申请人 LEE JOO-HONG 发明人 LEE JOO-HONG
分类号 H04L12/66 主分类号 H04L12/66
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