Thanks for the link. However, I need some further explanation and help here.
On the linked Obi page, "To the right of the configurable parameter value field, there may be a red exclamation mark (!). When this mark is present, it means the parameter value next to where it appears has an OBi Expert configuration database entry that is different than the OBiTALK database entry. If the Device Default and OBiTALK boxes are left unchecked, then the OBi will use this setting in its active configuration."
My scenario is that I setup both CallForwardUnconditionalEnable to yes and CallForwardUnconditionalNumber to SP1(1234567890) for example, respectively. Saved the settings. Then, when I check the corresponding checkboxes under ObiTalk Settings column, the checkbox of CallForwardUnconditionalEnable and the textbox of CallForwardUnconditionalNumber become empty, but the red exclamation marks are still next to these two boxes, even after I click the submit button to save the settings. And when I place a call to my Obi connnected phone line, it still forward the call to the number I set in the CallForwardUnconditionalNumber box, which is empty right now, only has a red exclamation mark next to it. And I am sure the Obitalk Settings box is checked, which according to the quotes from the linked Obi page, the callforwad shouldn't be triggered if OBiTalk boxes are checked.
Thanks in advance.