Panasonic KX-TD500 System Reference Manual page 226

2.02 Direct Inward System Access
(DISA)
Description
DISA allows an outside party calling into the
system on a DTMF line to directly access certain
system features, without attendant assistance.
After gaining access to the system, the caller can
access allowed features by dialing the appropriate
feature number.
The caller is required to enter DISA User Code
before being allowed to make an outgoing CO call
via DISA feature.
Extension call via DISA is made as follows:
central
office
Outside
Party
Outgoing call via DISA is made as follows:
central
office
Outside
Party
Outside Party
To utilize DISA feature, a DISA card is required
and assign "Special Attended-DISA", For Use to
"DISA".
It can be used as one of the following four ways.
1. OGM 1 for UCD with OGM
2. OGM 2 for UCD with OGM
3. OGM for DISA
4. OGM for W-UP (Wake-up call)
Up to four DISA cards can be installed to the
system.
System
extension
System
central
office
3-D-8
Programming
System Programming
"Configuration-Slot Assignment"
"System-System Timer",
Intercept Routing Time-Out
(DISA)
"Group-Trunk Group (1/3)",
Incoming Mode (Day)
Incoming Mode (Night)
Intercept Routing (Day)
Intercept Routing (Night)
"Trunk-AGC"
"Special Attended-DISA"
Conditions
If Tenant Service is employed, the affiliation of
DISA card can be programmed by "Special
Attended-DISA", Tenant.
Automatic Gain Control can be used for DISA to
maintain the volume of CO-CO call via DISA
feature by equipping up to four AGC cards. If
Tenant Service is employed, the AGC card can
be assigned to a tenant in "Trunk-AGC".
Dialing "* " allows the user to call again or
disconnect the line. It is possible to disable it by
setting "Special Attended-DISA", Control Code
"* " to "No".
Four digit DISA User Code is necessary for
making outgoing calls via DISA. It is assigned in
"Special Attended-DISA", DISA User Code.
To execute Intercept Routing-No Answer and
Rerouting for DISA calls, assign "System-System
Timer", Intercept Routing Time-Out (DISA) and
"Group-Trunk Group", Intercept Routing (Day)
and (Night).
For further information, refer to Section 3-F-5.00
"Intercept Routing-No Answer (IRNA)".
Reference
VT Dumb
10-C-2.00 11-C-2.00
10-D-3.00 11-C-6.00
10-E-1.01 11-C-15.00
10-F-3.00 11-C-23.00
10-I-1.00
11-C-33.00
to 35.00