发明授权
US09042539B2 Method and apparatus for sending alerts to internet protocol phones 有权
向互联网协议电话发送警报的方法和装置

Method and apparatus for sending alerts to internet protocol phones
摘要:
The present invention enables an alert message and the display of calling party identity on all on-hook phones associated with an extension sharing the same phone number, when one phone is off-hook and in use. In one exemplary embodiment, this capability enables all other members of a household to receive information regarding an incoming call even when one phone is in use by another member.
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