The SIP Diversion Header can be inserted in the SIP INVITE when you receive an redirected incoming call from another user.
Example: A calls B and is redirected to C. User C will see on the display the information that A tried to call B.
From software 2.16.6, we added the option to disable/enable the device to show this Diversion information.
Below an example for an incoming redirected call.
Normal behavior: Show Display Diversion information is set to Yes
Show Display Diversion information is set to No