We have a client using CUCM 188.8.131.52900-4 and Exchange2010 UM.
- Calls comes to CUCM and get routed to Exchange 2010 UM.
- Exchange 2010 sends REFER back CUCM with Refer-TO and 'Referred-BY' headers set.
- CUCM initialtes an INVITE with the service Provider (Final end point), how ever not passing through the 'REFERRED-BY' header.
Does anybody know if thsi is abug in CUCM or any resolution.
We need the REFERRED-BY header to process the INVITE properly.
Any help is appreciated....