I usually set up a G711-Only region and G711-Only device pool, that all other regions use G711 to talk to. I then assign this device pool to sw conference bridges. If all phones are in the same cluster they will dynamically switch to G711 when invoking the conference bridge. This means that conference calls across the WAN will be G711 but phone-to-phone or phone-to-gateway calls will be G.729. The only other way around this, afaik, is to provide a hw-based conference bridge (Cat 4k AGM, Cat 6K 6608, VG200 with DSP-FARM) which supports G729 conferences.
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.