This menu displays phones that have previously been registered but are now blocked from re-registering because another phone has subsequently registered using the same registration parameters. This blocked state is called 'quarantined'. This menu is supported from Release 10.1.

For example, when a user who has an already registered phone then registers another phone using the same parameters, their previous phone may automatically attempt to reregister itself. In that case, even though the previous phone is presenting correct registration details, its registration is blocked and it is quarantined.

The default quarantine time is 5 minutes. However, if the phone keeps on trying to reregister, its quarantine time is extended. Most phones eventually cease attempting to automatically re-register.

Quarantining is treated separately from blacklisting since the phone has been previously registered with correct authentication parameters.

Columns

• User Number:
  The extension number.
• IP Address:
  The phone's public IP address.
• Private Address:
  The phone's private IP address.
• User Agent:
  The device type string. This can help identify the phone type.
• Time Added:
  The date and time when phone was added to the quarantined phones list.
• Time to be Removed:
  The current date and time when the phone will be removed from the quarantined phones list. This will extend if the phone attempts to re-register again before this time.
• Registration Instance:
  For SIP phones, the protocol parameter used during registration. This can be useful to distinguish between simultaneous phones where whilst 'roaming' and changing the IP address the instance remains fixed.
• Registration ID:
   
   

Buttons

• Print...
  Prints all information available in the current screen (including any information currently scrolled off).

• Refresh
  Updates the screen. This button appears on screens that do not update automatically.

• Remove
  Remove the currently selected entry from the blacklist. This removes any blocking currently applied to that entry.

• Remove All
  Remove all the current entries from the blacklist. This removes any blocking currently applied to those entries.

• Save As...
  Saves the information shown on the screen to a text file (TXT or CSV). You can only save trace screens as CSV text files.