Without the obi100 I could apply a rule something like this....
1. Do not link any telephone number to my GV number
2. Create a group from which I will entertain calls to my GV number
3. All other callers (other than 2) will go to my GV voicemail
My setup.... OBI100 Connected to a landline phone (has voicemail built in) and linked to my GV.
How do I go about creating a white list in OBI100 with the same functionality?