Version 5.0, full PRI. SO I set an extension for enable redirect. Since I only have PRI-A as a pool I just created a button, feature 4. Then I press the button, dial 9xxxxxxx. I call in using the DID but the set will not call forward. If I dial in on an iPhone it never rings then hangs up. On my Android I dial in and then I get "call cannot be completed as dialed." I hear the set beep rather than ring.