dtmf-term-char
                                                    Specifies the character that terminates DTMF input.
Nuance recommends that VoiceXML applications and Speech Server use the same default termination character. For example, since the VoiceXML default is # (the pound sign, also called the hash or number sign), you can change the Speech Server value to "#".
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                                                                     Value  | 
                                                                
                                                                     String. Any character on a telephone keypad. DEFAULT: VoiceXML: # MRCP: NULL  | 
                                                            
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                                                                     How to set  | 
                                                                
                                                                     Shown in precedence order (see Rules of parameter precedence): In a VoiceXML application, using the termchar property in a <property> element. In the browser, using the DTMF-Term-Char header in a RECOGNIZE method. In the application's session xml in the <speechrecog> section of <speechserver> under <sessionparameters>.  | 
                                                            
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                                                                     Usage  | 
                                                                
                                                                     Occasionally used.  |