UserName is a unique identifier. This is always a user's email address.
Choose a password that is not a dictionary word, that others may easily compromise.
Your telephone that others may use to click to call your name in your online buddy list.
Your mobile phone others will use to right click to call in your online buddy list.
If a user is not active, calls will not route to the devices under this account.
The admin group specified allows extended functionality like, being able to see all voicemail, or add user accounts and view billing information.
This is not mandatory, but is helpful to quickly add extensions to the user information specified above.
This is a 3 or 4 digit number that is used in the PBX to identify your SIP device.
Use something other's will not know, but is easily configurable from the phone. This is how your SIP device authenticates to the PBX system.
This is the Email address used for unified messaging. You can edit your extension to provide call notifications and even forward voicemail messages to.
This is the 4 digit PIN code used to access your voicemail when internally dialing *97 or from outside lines pressing * during recording.