Caller ID FreePBX Trunk

I’ve created a trunk in freepbx and set the Outbound CalllerID as the caller ID i would like to display to people who are receiving calls from me. I set the CID Option to: Force Trunk CID. It works in terms of showing the correct CID to the recepient. However, when I make some calls, lets say for example I dial an example number 0800123123, usually on my phone this is the number that should show as this is the number I am calling, but for some strange reason the display on my phone changes to CID: My Set CID in the trunk settings.

Am i doing something wrong?