code: public ArrayList<OvhDiagnosticReport> billingAccount_service_serviceName_diagnosticReports_GET(String billingAccount, String serviceName, OvhDiagnosticReportIndexEnum dayInterval) throws IOException {
  		String qPath = "/telephony/{billingAccount}/service/{serviceName}/diagnosticReports";
  		StringBuilder sb = path(qPath, billingAccount, serviceName);
  		query(sb, "dayInterval", dayInterval);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, t12);
  	}
docs: Get Relevant informations of the service detected from the MOS or the signal leg in SIP/MGCP protocol.
  
  REST: GET /telephony/{billingAccount}/service/{serviceName}/diagnosticReports
  @param dayInterval [required] The date index interval
  @param billingAccount [required] The name of your billingAccount
  @param serviceName [required]