I read the new blog about securing 3CX at http://www.3cx.com/blog/voip-howto/securing-hints/ and checked if remote calling via voice mail was actually blocking calls. I am running version 8.0.10116 and I verified that the setting: Settings/Advanced/Custom Parameters/VMDIALOUTENABLED is set to 0 (zero), the default value. But, 3CX still allows an external caller get to voice mail (by dialing an extension that is configured to forward all calls to the voice mail SpecialMenu number), enter '9' to be sent to the options menu, enter '3' to make an outbound call, and then enter a long distance number. The call was completed and not blocked. Is there something else that needs to be changed to block external calls from the voice mail options menu?