I am trying to configure the SPA525G phones with the UC500 box, however it only works when uscing SCCP, when I switch to SIP, the phone stops working. I found a few documents googling it but nothing that gives me a complete handle on how to configure a SPA525G using SIP on the LAN side. I would appreciate if some one can point me through any sort of documentation for it. I am okay with both the CLI and the GUI method. Thanks in advance.