Polyphonic ringtone calling method and system and communication equipment
A CRBT calling and called terminal technology, applied in telephone communication, transmission system, automatic switching office, etc., can solve the problem of high cost of CRBT signaling entry
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[0046]It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0047] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0048] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of tec...
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