{"id":716,"date":"2013-04-22T23:02:32","date_gmt":"2013-04-22T15:02:32","guid":{"rendered":"http:\/\/www.myvoipapp.com\/blogs\/yxh\/?p=716"},"modified":"2019-02-12T20:11:50","modified_gmt":"2019-02-12T12:11:50","slug":"sip-info%e4%bc%a0%e9%80%92dtmf%e4%bf%a1%e5%8f%b7%e7%9a%84%e8%8b%a5%e5%b9%b2%e7%ba%a6%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/www.myvoipapp.com\/blogs\/yxh\/2013\/04\/22\/sip-info%e4%bc%a0%e9%80%92dtmf%e4%bf%a1%e5%8f%b7%e7%9a%84%e8%8b%a5%e5%b9%b2%e7%ba%a6%e5%ae%9a\/","title":{"rendered":"SIP-INFO\u4f20\u9012DTMF\u4fe1\u53f7\u7684\u82e5\u5e72\u7ea6\u5b9a"},"content":{"rendered":"<p>\u91c7\u7528SIP-INFO\u6d88\u606f\u6765\u4f20\u9012DTMF\u4fe1\u53f7\uff0c\u4f3c\u4e4e\u53ea\u662fCisco\u7684\u5b9a\u4e49\uff0c\u6ca1\u6709\u4e00\u4e2a\u6210\u6587\u7684\u6807\u51c6\uff0c\u4f46\u662f\u76ee\u524d\u4e3b\u6d41\u7684SIP\u5382\u5bb6\u57fa\u672c\u90fd\u9075\u5faa\u4e86\u76f8\u540c\u5b9a\u4e49\uff0c\u4e3b\u8981\u91c7\u7528\u2018Signal\u2019\u53c2\u6570\u4f20\u9012DTMF\u503c\uff1a<\/p>\n<pre>Signal=1<br clear=\"none\" \/>Duration=160<\/pre>\n<p>\u5176\u4e2d\uff0cSignal\u4e0eDTMF\u4fe1\u53f7\u5bf9\u5e94\u5982\u4e0b\uff1a<\/p>\n<pre>DTMF               Signal  \r\n-------------------------\r\n0--9\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0--9\r\n*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0  10\r\n#\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a011\r\nA--D\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 12--15\r\nFlash\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a016<\/pre>\n<p>\u8fd9\u79cd\u6620\u5c04\u5173\u7cfb\u4e0eRFC2833\u89c4\u8303\u4e00\u81f4\u3002\u4f46\u5b9e\u9645\u4e0a\uff0cSIP-INFO\u65e2\u7136\u662f\u6587\u672c\u6d88\u606f\uff0c\u5176\u5b9e\u6ca1\u5fc5\u8981\u8fdb\u884c\u8f6c\u8bd1\u3002\u4f8b\u5982\uff0c\u4f20\u9012\u2018*\u2019\u4fe1\u53f7\u65f6\uff0c\u76ee\u524d\u7684\u5904\u7406\u662f\uff1a<\/p>\n<pre>Signal=10<br clear=\"none\" \/>Duration=160<\/pre>\n<p>\u8fd9\u6837\u7684\u5b9a\u4e49\u975e\u5e38\u4e0d\u76f4\u89c2\uff0c\u5b8c\u5168\u53ef\u4ee5\u76f4\u63a5\u4f20\u9012\uff0c\u5982\u4e0b\uff1a<\/p>\n<pre>Signal=*<br clear=\"none\" \/>Duration=160<\/pre>\n<p>SIP-INFO\u8fd9\u6837\u4f20\u9012\u663e\u5f97\u975e\u5e38\u76f4\u89c2\u3002RFC2833\u4e8c\u8fdb\u5236\u534f\u8bae\uff0c\u53ea\u80fd\u8fdb\u884c\u5b9a\u4e49\u8f6c\u6362\uff0c\u4f46\u662fSIP\u672c\u8eab\u662f\u6587\u672c\u534f\u8bae\uff0c\u8db3\u4ee5\u8fdb\u884c\u6587\u672c\u6027\u63cf\u8ff0\u3002\u53ef\u60dc\u5f53\u521d\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u975e\u8981\u6309\u71672833\u65b9\u5f0f\u8fdb\u884c\u5b9a\u4e49\uff0c\u4e5f\u8bb8\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u8fd9\u79cd\u65b9\u5f0f\u59cb\u7ec8\u6ca1\u6709\u6210\u4e3a\u6b63\u5f0f\u89c4\u8303\u7684\u539f\u56e0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u91c7\u7528SIP-INFO\u6d88\u606f\u6765\u4f20\u9012DTMF\u4fe1\u53f7\uff0c\u4f3c\u4e4e\u53ea\u662fCisco\u7684\u5b9a\u4e49\uff0c\u6ca1\u6709\u4e00\u4e2a\u6210\u6587\u7684\u6807\u51c6\uff0c\u4f46\u662f\u76ee\u524d\u4e3b\u6d41\u7684SIP\u5382\u5bb6\u57fa\u672c\u90fd\u9075\u5faa\u4e86\u76f8\u540c\u5b9a\u4e49\uff0c\u4e3b\u8981\u91c7\u7528\u2018Signal\u2019&#8230;<\/p>\n<p 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