1. Place line 4 (743) into CO group2 (800). 2. From the Fax machine, go off hook and dial 800 (be sure you are accessing line 4). Then dial a valid number. You must dial out on that line /(line group) before programming the hot line (dial 740 for line 1, 741 for line 2, 742 for line 3 etc.…). 3. Program a System Speed dial bin with a pause. To do this, you can use PCDBA or program using the phone. Using PCDBA Go to the DX80 PC-DBA System Resource SPD. No. Programming Tenant 1screen in PCDBA. Choose a system speed dial bin (DIR#s 500-699), and insert a P for pause in its SPD. No. field.