Hello,
I Have Cisco Phone 8865 Software version : sip8845_65.10-3-2-16.loads, I try Monitor Cisco Phone with Program Wireshark. I see packet register with CUCM Active with Respond Status 200 OK, But Cisco Phone Request Register with CUCM Standby again every 1 minute. This message "removed 2 binding" is showing in packet.
I attach Picture Information packet detail. Please tell mean this packet.