Hello,
I can't find nothing additionally to the below paragraph in "Callmanager release notes for v5" about Ethernet redundancy for any version after this ******************"Cisco CallManager 5.0(1) does not support NIC teaming. Be aware that if you were using NIC teaming with a Windows-based version of Cisco CallManager, you will not be able to use it after you upgrade to Cisco CallManager 5.0(1)."
Then is not possible to have ethernet redundancy for one server?