Finally got our UC520 with VIC3-4FXS/DID interface card up and running, but stuck on one thing. The phone handsets are displaying "external call" rather than incoming caller ID. Any idea on how to configure the system to display incoming caller ID? We are using DID lines from the local carrier here in Hong Kong, PCCW, connected to the DID ports on the VIC3 card. I noticed that the option for caller ID is greyed out in the 'voice' section in CCA. I'm assuming that it is not possible to configure the Caller ID using CCA, but is it possible to do it in the web interface, rather than having to resort to CLI?