The question is why do you have it? Many such configurations are cut and pasted without understanding, although your is relatively benign in this respect. However, there is always a possibility that something else will break if you remove it.
You don’t seem to have provided the tab where this might be controlled by the GUI, and the wiki is down.
I have removed the fromuser of the trunk configuration
And I could to forward the original caller id
The problem is that any internal Extension, for example, 3001 is sending 3001 and not the trunk number
I have changed the value of Outbound CID of all internal extension from “” to “9XXXXXXX4”. And now the caller id from internal extensions are “9XXXXXXX4”