How to block calls by CLI number:
In Sippy 2020 DNC was implemented for CLI (calling) numbers: DNC CLI allows adding a list of CLI numbers so that calls with one of those numbers are blocked at Sippy Softswitch.
See more details by the following link:
Do Not Call List (DNC, DNCL) Print
How to block calls by CLD number
Solution #1:
In Sippy 2020 DNCL module was released to block CLD numbers. It allows an upload of the predefined list of CLD numbers so that calls with one of those numbers are blocked at Sippy Softswitch.
Do Not Call List (DNC, DNCL) Print
Solution #2:
1) Open the authentication rules of the desired account;
2) Create CLD translation rule which will convert CLD number to an unknown prefix and as a result calls with unknown prefixes will be failing (example for prefixes 1 & 2):
s/^001/BLOCK/;s/^002/BLOCK/
Note, if a switch operator wants to block several prefixes in one rule he/she may use a semicolon between rules like in the example above. But switch operator should know that system applies rules sequentially.
If a switch operator wants to upload rules via CSV/XLS file it may be done in the following way:
Edit the download template by adding the needed rules: (A letter in the 1st column adds rule after upload):
Save file.
Select file by pressing "Browse" button and click "Upload" to upload file:
When the upload is done, you will see the following window:
