LERG Blocking
The Telcordia LERG database tells you many information of a phone number and the important data we get for call blocking purposes are :
- Country of the Phone Number
- Operator Type of the Phone Number ( ex. Wireless, Landline, etc )
You can use the LERG blocking under "Auto Call Block" section in the Ingress Trunk setting to block calls by ANI or DNIS.

The selection provided by Class 4 Fusion are as follows:
- Block non US ANI
- Block Wireless ANI
- Block Wireless DNIS
- Block Toll Free ANI
- Block Invalid +1 ANI
- Whitelist +1 Country for ANI
Last modified 10mo ago