I have a customer with 6 phones on a CIX. 2 of the phones were programmed to dial out on all 4 lines. 4 of the phones were restricted to dial out on line 4 with a code before the number dialed. The first 3 lines were restricted from dialing. The customer wanted to change the code for line 4. i cannot find where the code is in the system. Can anyone assist me? Thanks in advance.