External Caller ID when forwarding

[cire00]

Hi All,

I found a strange problem on External Caller ID

Here is the info:
3CX version 16.0.3.676 Enterprise
Extension number: 2222
Caller ID: 12342222
Trunk Prime Number: 12342200
Mobile number: 87654321

Case 1:
External caller calling 2222, "Ring my mobile simultaneously" checked in forwarding rule
Mobile shows caller ID: 12342222 (Correct)

Case 2:
External caller calling 2222, "Ring my mobile simultaneously" not checked in forwarding rule
Call forward to mobile on DND, DND status set
Mobile shows caller ID: 12342222 (Correct)

Case 3:
External caller calling 2222, "Ring my mobile simultaneously" not checked in forwarding rule
Call mobile when busy/no answer on available status, Available status set
Mobile shows caller ID: 12342200 (incorrect caller ID)

I have tested many config but seems there is something wrong in 3CX which using the trunk ID as "calling party ID" instead of using the extension number. When I change the trunk ID from 12342200 to 12342299, the caller display shows the new trunk ID.

This issue also happens on ringgroup/call queue forwarding to external number, it will using the trunk id instead of using the number of ringgroup/call queue

Is there any config we can change to display the caller id from extension which forward the call?