as known 7815 supports up to 300 users, if i have two 7815 servers CCM1 (pub) and CCM2 (sub) is it poosible to configure 2 callmanager groups CCM-Group1 has only CCM1 callmanager in its list and CCM-Group2 has only CCM2 in its list, so this way my servers can support up to 600 users? 300 users with device pool 1 that contains CCM-Group1 and the other 300 users with device pool 2 that contains CCM-Group2?
i know there is no redundancy if doing so, but my question is about capacity?
As you have said, this isn't really a recommended design. That being said, you can configure the Callmanager Groups/Device Pools exactly as you noted.The other thing that Cisco notes in their SRND docs is to avoid having phones registered to the Publisher if possible, but, as we all know sometimes fianancial considerations come in to play here.
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.