CALL VERIFICATION


Abstract

Before moving to the call verification, you have to be sure to have access to our databases

Recommended order for call verification

Databases processing order

  1. Internal whitelisting

  2. katia databases

  3. internal spam databases

  4. Other vendors databases

Call verification field

We recommend to perform the check on the field representing the A_NUMBER

  • Caller CLIP

  • Presentation number

  • SIP FROM

We do not recommend to perform the check on the SIP_PAI field

The SIP_PAI field is often misconfigured : caller set a valid A_NUMBER but incorrect SIP_PAI value

Using it for call verification may increase the rate of False Positive.