There are mainly 2 ways to use Hoiio Global DNC system, depending whether you wish to make it in Real-time check immediately, or to make it Manually check DNC registry.
1/ Real-time check and Block/or Ask to bypass.
Immediate filtering DNC while you make calls/SMS with Hoiio system.
Call charge rate: S$0.017/min
SMS charge rate: S$0.045/SMS
2/ The option 2 is to use with your current existing phone/sms system, by submit the contact list to get the result, Hence you can make calls/SMS base on the result.
The result is valid for 30 days since the dates you submit request of Bulk filtering/Single number check.
DNC check rate: S$0.01/check