we're experiencing an annoying problem with Cisco UCM 6.1 (version 126.96.36.1990-13).
The problem is that now and then call transfer function stops working - you press the softkey and no result follows. Can be cured by restarting CallManager service on the publisher server. The cluster is comprised of two identical MCSs, on the same switch so it can't be related to sync problems. Of course it's not about css/partitions as phones and numbers remain the same.
Thanks in advance.