Document Revision 4C
Electra Elite IPK II
2 - 344
Direct Inward System Access (DISA)
2. After 10 minutes (Tandem Trunking = Program 24-02-07 or DISA = Program 25-07-07), a warning tone
is heard and the user dials
#
(Program 20-28-01) to extend the conversation.
3. After three minutes (Program 20-28-03), the warning tone is heard again. After 30 seconds (Tandem
Trunking = Program 24-02-10 or DISA = Program 25-07-08), the call is disconnected.
Conditions
The DISA caller must use an analog (DTMF) telephone. DISA is compatible with calling
devices that meet the DTMF signaling requirements of EIA Specification RS-464. DISA
trunks must be ground start or supervised loop start.
The Continue/Disconnect code must be DTMF.
With an analog trunk, the Continue/Disconnect code may work using DTMF sounds from
the opposite side trunk. With an ISDN trunk, Program 14-01-25 must be enabled to detect
the Continue/Disconnect code.
The Continue/Disconnect code is not accepted while dialing a trunk.
Continue/Disconnect codes do not work if all DTMF receivers are busy.
When used with the Networking feature, both systems must be programmed the same.
In a system with ARS enabled:
When a DISA caller dials 9 for an outside call (if allowed), the system routes the call via
ARS.
In a system with ARS disabled:
When a DISA caller dials 9 for an outside call (if allowed), the system uses the routes
programmed for Trunk Group Routing.
Transferred calls on DISA, DID, DIL, ISDN trunks, or from the VRS can display the reason
a call is being transferred (Call Forward, Busy, No Answer or DND).
Long conversation cutoff is controlled separately for manually transferred Tandem Trunk
calls, automatically transferred Tandem Trunk calls, and DISA calls.
Tandem Trunking also uses the Continue/Disconnect codes DISA uses.
Department Calling with Overflow Message requires a DSP daughter board for VRS.
DISA can be set only to call forward to another extension. Call Forward Off-Premise is not
supported.
Default Setting
Disabled
Summary of Contents for ELECTRA ELITE IPK II
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Page 549: ...Electra Elite IPK II Document Revision 4C Internal Hub 2 525 Operation None ...
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