Re: Publisher Backup for IP Phone Services Button?
In the CCM7 SRND Cisco recommend using a Server Load Balancing (SLB) device to create a virtual IP address for use in IP phone URL's.
The SLB device accepts phone requests to the virtual address and then distributes them to the real CUCM servers. Most SLB devices can detect a failed server and stop sending it requests until it is back on-line.
As not every customer has an SLB appliance in their network I often use round-robin DNS to distribute requests between CCM servers.
For example, in a network with a Publisher (192.168.0.100) and Subscriber (192.168.0.101) I would create a DNS record for a host called ccmcluster and register it against the addresses of the two CCM servers.
I then use this hostname in phone urls. When phones use DNS to resolve the hostname they are alternately given the IP addresses of the Publisher and Subscriber. If one is off line the phone eventually connects to the remaining server.
This however may not be a solution for you because, as far as I am aware, it is not possible to login/logout of Extension Mobility in a CCM 4.x environment. This is possible for CUCM 6 and 7. (It would be worth checking whether things have changed for CCM 4.3 as I have never used it).
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.