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