Talk:Ringback tone
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I merged Ringback signal and Audible ringing tone into this article. As some content from Ringback signal and Audible ringing tone were supposed to be based on other sources as well, these sources therefore inheritate into this article:
Source: From Federal Standard 1037C and from MIL-STD-188
--Abdull 12:51, 27 August 2006 (UTC)