Section 700 - Operation Chapter 3. System Features
576-13-700 DBS 576 (USA), Revised 6/11/98 41
Operation
To make a DISA call to an extension:
To make a DISA call to an outside number:
Hardware Requirements

•N/A

Related Programming

• FF1-0-26: DISA Incoming Code

• FF1-0-26: DISA Outgoing Codes and TRS Assignments
• FF1-0-04: Class of Service (DISA ID Check)
• FF2: Ring Type
Considerations
• Busy override cannot be used for a DISA line.
• DISA can be used to access extensions as well as outside numbers.
• Paging cannot be accessed from a DISA line.
• While dialing an extension number, the * key may be entered to cancel dialing and return to dial
tone. The # key may be entered to disconnect.
Distinctive Ringing
Description
Distinctive Ringing sets CO calls to ring with a distinctive ring based on the trunk. This “ring” also
identifies the call as an outside call instead of an inside call.
Action Result
1. From an outside location, enter the DISA trunk number. DISA dial tone
2. 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 Result
1. From an outside location, enter the DISA trunk number. DISA dial tone
2. 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.