In the following setup:
IP Phone 7821 FW: sip78xx.10-1-1-9
I've configured a Service URL to call the Missed Calls, but when I press the button it shows me just blank and the information is not displayed.
I've tried as well with Placed Calls and the result is the same.
I've tried with Coorporate Directory and this works.
Is there any limitation/bug regarding this behavior?
Configuration Screenshots in attach
Thanks in advance,