/mcpIncoming PSAP CallBack Call is Not Routed as Expected Problem: An incoming PSAP CallBack call does not get routed as expected. Cause: The Emergency Location (ELIN) number does not match the number of the original dialed party. Solution: For an ELIN to be successfully reverse mapped to the original dialed party, these two numbers must match. If there are already transformations at the incoming Gateway or Trunk and significant digits configured, make sure that the final transformed called party matches the ELIN number. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 649 Custom Features Incoming PSAP CallBack Call is Not Routed as Expected