add + symbol to outbound calls via dial plan

Pbxes identifies all international numbers being dialed out of Australia as being USA ones due to the 0011 prefix we use for international numbers. But if I dial with a + instead it identifies the correct country. Dialing a + is not possible on most phones so it would be nice to be able to replace 0011 with a + via the dial plan so that the call history showed the correct country.