From NCIL Position Opposing Electronic Visit Verification:

"The EVV systems that require the voice recognition or speech recognition discriminate against Deaf and non-English speaking workers.  A Deaf wheelchair user may prefer to use a Deaf person as their attendant in order to have effective communication; however, if their Deaf attendant cannot hear the instructions on the phone and/or voice their answers, the EVV system will presume fraud is occurring.  Likewise, any non-English speaking attendants would also be subject to fraud accusations because of the EVV system."