I also get fast busy with outgoing calls on port 2.
EDIT: When I dial 11 digits it works. Dialing 7 digits on port 2 gives fast busy.
As Brandon requested I tried a 1 800 number and it had the same issue and I called my cell XXX -XXXX and it had the problem. After reading your comment I tried dialing my cell with the area code and it worked fine.
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