发明名称 Method and system for alerting call participant of a change in a call hold status
摘要 A method and system for controlling a connection between a calling party and a called party. When a call is placed on hold, detection services are utilized to determine when the call changes from being "on hold" to being active. The call control system can then contact the caller to inform the caller of the change in the status of the call. Such contacts can be either in-band or out-of-band. If the caller is unable to respond to the change in call status, the called party can leave a message for the caller.
申请公布号 US2005147227(A1) 申请公布日期 2005.07.07
申请号 US20030748150 申请日期 2003.12.31
申请人 FRANCE TELECOM, S.A. 发明人 CHERVIRALA SRINIVAS;MALLYA SATYA
分类号 H04M3/428;(IPC1-7):H04M3/42 主分类号 H04M3/428
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