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METHOD AND SYSTEM FOR TRANSMITTING OUT-OF-BAND DUAL-TONE MULTI-FREQUENCY SIGNAL ON MEDIA SURFACE
METHOD AND SYSTEM FOR TRANSMITTING OUT-OF-BAND DUAL-TONE MULTI-FREQUENCY SIGNAL ON MEDIA SURFACE
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机译:在媒体表面上传输带外双音多频信号的方法和系统
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摘要
The present invention discloses a method and a system for transmitting an out-of-band dual-tone multi-frequency signal on a media surface, and the method includes: in a Bearer Independent Call Control (BICC) network, a Mobile Switching center (MSC) sends Dual-Tone Multi-Frequency (DTMF) capability negotiation information of a Media Gateway (MGW) to a USS through a control channel; said USS disposes said DTMF capability negotiation information and sends a DTMF capability negotiation result to said MGW through the control channel; when the capability negotiation succeeds, said USS and said MGW establish a media channel according to said DTMF capability negotiation result and transmit the DTMF signal on the out-of-band through said media channel. The method and the system for transmitting the out-of-band dual-tone multi-frequency signal can implement the out-of-band transmission of the DTMF signal in the BICC network.
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