发明名称 System and method for communicating text teletype (TTY) information in a communication network
摘要 A method includes receiving signals comprising at least one of voice information and text teletype information. The method also includes determining whether at least some of the signals contain text teletype information. The method further includes coding any of the signals containing text teletype information using a text teletype coder. In addition, the method includes coding any of the signals containing voice information using a voice coder.
申请公布号 US7170976(B1) 申请公布日期 2007.01.30
申请号 US20020322076 申请日期 2002.12.17
申请人 CISCO TECHNOLOGY, INC. 发明人 KEAGY SCOTT C.
分类号 H04M11/06 主分类号 H04M11/06
代理机构 代理人
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