Under sipX 4.6 I have managed to get BLF functionality working with a Linksys SPA942, with a few modifications to sipX and the Linksys phone plugin.
Below are the steps I’ve followed, along with the files that I’ve modified to get sipX to not overwrite your settings, and give admins access to provisioning these changes.
If you’re annoyed by the nag dialog that pops up when you log into your Proxmox 3.1 community install, run this patch from VM server in question.
wget http://www.tolaris.com/blog/wp-content/uploads/2013/08/no_subscription_popup_pvemanagerlib.js-3.1.patch -O - | patch -p0
Piping that download through patch, will apply the fix to the appropriate file (/usr/share/pve-manager/ext4/pvemanagerlib.js)
Log out of the web UI, and possibly clear your browser cache / close browser window.
Having said that, there is support from Proxmox available if you feel guilty about using the patch.
In OS X 10.8 I’ve found a few issues where the Calendar application won’t show calendars properly from any other service, including Google and iCloud. My solution was to clear the cache located in “~/Library/Calendars/Calendar Cache”
Do this with the program closed, then go into System Preferences and re-enable your Calendar accounts.