Yes. GetInput XML supports the simultaneous detection of DTMF and Speech inputs. This can be enabled by setting the inputType param to ‘dtmf speech’ in the XML response. 

The first input to be detected will be forwarded to the Action URL specified. 

For example, to a prompt like ‘Press 1 or say Yes to accept.’, if the caller presses 1 before saying anything, then the digit 1 will be forwarded to the Action URL. 

To learn more about detecting DTMF & Speech with GetInput XML, check out the detailed reference documentation here.