RINGBACK TONE PREFERENCE INFORMATION TO ASSIST SELECTION OF RINGBACK TONE
摘要
<p>Ringback tone preference information, input by a user of a communication device, is presented to a ringback tone service subscriber or a proxy for the ringback tone service subscriber to assist the ringback tone service subscriber or the proxy select a ringback tone to be played to the user of the communication device on a call to the ringback tone service subscriber</p>