I use and OBI 203 with GV as the service provider
I have been receiving lots of robocalls but they are not coming in via GV, instead they are coming in directly through the OBI. I don't know much about how OBI works, but the robocalls seem like they are through an OBI to OBI route.
I would like to set up my OBI account to block all calls that do not come via GV, is there a way to do that?
Thanks.