update environment variables according to https://duosoftware.atlassian.net/wiki/display/DVPDS/2015/10/15/Duo+Voice+Platform+Deployment+Standards
update environment variables according to https://duosoftware.atlassian.net/wiki/display/DVPDS/2015/10/15/Duo+Voice+Platform+Deployment+Standards

DuoSoftware/DVP-ARDSHandlingAlgorithm