Re: VideoTelephony between CCM6 and CCME4 : ok but with IPcommun
The Cisco CallManager sends keepalive acknowledge messages to the registered devices once every 30 seconds. If Cisco IP Communicator is behind a firewall, or if there is some Access Control List(ACL) configured in the network, the keepalive traffic between the Cisco CallManager and IP Communicator is blocked. In this case, make sure that the firewall/ACL is configured to pass TFTP and RTP traffic using the appropriate port range.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.