Step 1: Login to Administrator and then select Telephony à  Lists

Step2: Click on Add/Delete DNC Numbers





Step 3: You can Add/Remove phone numbers individual. Enter phone numbers, and add/delete then Click Submit.

NOTE: One phone number per line, maximum 25 numbers you can add/delete.

Whether you want to put bulk of phone numbers in DNC .First we have to create the list of phone numbers that you have to put in DNC.

 Step 4: Telephony à  Lists and then Click on Upload DNC Numbers

Step 5: Choose the file (.CSV). Now select weather you want to add/delete then Click Submit.