So I have tried and yes googled to get the answer. I have a customer that is using a Wellgate 2540 for FXO PSTN lines and everything is working except incoming Caller ID is not showing up. I tried to edit the Outgoing Caller ID setting for display name to PSTN Caller Name but the gateway does nothing when I click Apply. It just sits there after I change the display name to PSTN Caller Name from the drop down. If I click a different menu option or back and then go back in to the SIP trunk settings its back to the NONE setting for display name. How do I get this gateway to change? Nothing I have done seems to apply a setting change and the customer is getting annoyed very quick that they no longer have any Caller ID after I switched them to 3CX.