This document provides instructions to configure ProSBC to operate with the TransNexus/ClearIP server for Verification with CNAM and Robocall Analytics. TransNexus/ClearIP is a SIP redirect server that provides advanced Least Cost Routing (LCR), fraud control and STIR (Secure Telephony Identity Revisited) / SHAKEN (Secure Handling of Asserted information using toKENs) features.
Please visit the following link for details; ProSBC Configuration for CAPTCHA Authentication – 302 Redirect with Transnexus ClearIP service - TB Wiki