3-28 DBS 576 (USA) issued September 2001 576-50-700Chapter 3. System Features Section 700 - OperationThere are 8 extension pad classes and 16 trunk pad classes. In addition, there are pad classes forconference calls, page port, MFR, RAI Modem, and Conference Call Unit. One pad class is currentlynot used.For instance, a call from an extension assigned to extension pad class 1 to a trunk assigned to trunkpad class 3 would received the volume adjustment assigned to this connection combination.Hardware Requirements• N/ARelated Programming• N/AConsiderations• N/ADirect Inward System AccessDescriptionDirect Inward System Access (DISA) gives off-site users dial-in access to the System. You accessDISA from an outside location by entering a digit number assigned to a DISA trunk.For security reasons, 16 incoming DISA ID codes/TRS class can be assigned. If a code is assigned, itmust be entered as soon as the DISA trunk answers.OperationTo make a DISA call to an extension:To make a DISA call to an outside number:Action Result1. From an outside location, enter the DISA trunk number. DISA dial tone2. If an incoming DISA code is assigned enter the DISA code(up to 10 digits). Otherwise, proceed to step 3.3. Dial the extension number.Action Result1. From an outside location, enter the DISA trunk number. DISA dial tone2. If an incoming DISA code is assigned enter the DISA code(up to 10 digits). Otherwise, proceed to step 3.3. Enter the Trunk group number (9 or 81-84)4. Dial the phone number.
