| | Visual Voicemail IT Policy Solution
Don't know if you've solved this problem yet, but I just figured it out today and thought I might share! The problem is from the BES and not the handheld policy (assuming you have the device policies all set to "allow") --
Depending on your Enterprise version, get to the IT Policy settings and make sure Split-Pipe Connections are allowed and set to TRUE. Unlike the other options, the default is NOT to allow if it's left unchecked.
If you need info on how to get to the IT Policy settings on your BES, visit the Blackberry site and search for IT Policy for direction.
I am now happily able to use the Visual Voicemail feature! Hope this helps, or at least provides a place to start to get to the root of the problem!