Presence Panel is configured as follows....
pbxaas.neural.net.au (SOHO, Standard, Unlimited)
<your PBX address> (Call Centre Edition)
|Extension:||The full username of your extension (as seen in the configuration panel)|
|Secret:||The secret (password) for your extension|
|Users:||By default all extensions will be shown - you can customise this on the users tab|
You can find your extension and secret details by accessing the PBX interface as detailed here: http://support.neural.com.au/entries/20230297-PBX-as-a-Service-Configuration, then selecting Extensions and clicking the edit icon () corresponding to your extension.
Pictured: PBX configuration panel at https://voip.neural.net.au (Left) and Presence Panel configuration screen (Right)