Features
Direct Inward System Access (DISA)
Networking â—† 67
Direct Inward System Access (DISA)
Direct Inward System Access (DISA)
Networking allows DISA callers to place a call to an extension in a networked system. Some sys-
tem features can also be accessed from the networked system. The Class of Service is determined
by the password entered by the DISA caller. The password table is referred to by the system on the
incoming trunk side.
The Networking feature allows the following DISA services as allowed in Program 20-14 : Class
of Service Options for DISA/E&M.
Operation
To place a DISA call into the system (from any 2500 type telephone):
1. Dial the telephone number that rings the DISA trunk.
2. Wait for the DISA trunk to automatically answer with a unique dial tone.
3. Dial the 6-digit DISA password (access code).
4. Wait for a second unique dial tone.
5. Dial an extension (301-556).
OR
Dial 9 for Trunk Group Routing or ARS.
OR
Dial Alternate Trunk Route Access Code (if enabled).
OR
Dial #9 + a trunk number (1-200) for an outside call.
OR
Dial 0 for the operator.
OR
Dial 803 + an External Paging Zone number (1-8 or 0 for All Call).
If the received digits are analyzed as a networked extension number, the call is routed
to the proper network node.
Program Number Service Name Available
20-14-02 Trunk Route Access Yes
20-14-03 Trunk Group Access No
20-14-04 Common Abbreviated dialing No
20-14-05 Operator access Yes
20-14-06 Internal Paging No
20-14-07 External Paging Yes
20-14-08 SpeciÞed trunk access No
20-14-09 Forced trunk disconnect No
20-14-10 Call Forward setting No
20-14-11 Break In No
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