发明授权
US08428239B2 Providing an option to substitute a local ringback tone at a calling party device 有权
提供在主叫方设备上替换本地回铃音的选项

Providing an option to substitute a local ringback tone at a calling party device
摘要:
A method for playing a local ringback tone is disclosed. A second party device is called from a calling party device. An alert message indicating that the calling party device is to play a network ringback tone is received. It is determined whether to play a pre-stored local ringback tone instead of the network ringback tone. The local ringback tone or the network ringback tone is played based on the determination. At any time before call connection or call release, the local ringback tone and the network ringback tone are switched between based on user input.
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