SIP-T32G - Dial a number sent from a PC fails

Hi,

When I log into my SIP-T32G (Firmware Version 38.70.0.185) and attempt to make a call from the "Call Panel" - "Dial a Number" it immediately fails.

I have entered the computer IP address into the Phone - Features - Remote Control Security - Trusted Action URI Server List

but that does not fix the issue (I attached an image of the settings that I am entering).

If anyone could help me troubleshoot this I would greatly appreciate it.

Sincerely,

David