NEC UNIVERGE SV8100 Features & Specifications Manual page 421

UNIVERGE SV8100
DISA Operating Modes
The DISA Operating Modes determine what happens when a DISA caller forgets to dial, calls a busy or
unanswered extension or dials incorrectly. The system can either drop the call or send it to a preset Ring
Group (called the DISA Transfer Destination).
Department Calling with Overflow Message
If a DISA caller dials a busy Department Calling Group, the system can periodically play the voice
prompt, "Please hold on. All lines are busy. Your call will be answered when a line becomes free." while
the caller waits. The interval between the voice prompts is the VRS Waiting Message Interval Time.
When an extension in the Department Group becomes available, the call automatically goes through. If
the Department Calling Group remains busy past the DISA No Answer Time, the DISA call routes to the
overflow destination or disconnects. (What happens to the unanswered call is set by the DISA Operating
Mode). The Overflow Message requires a VRS.
Warning Tone for Long DISA Calls
You can set up the system to provide a warning tone to DISA callers that have been on a call too long.
The warning tone can be just a reminder (which the caller can ignore) or can be followed by a forced
disconnect of the call. When the DISA caller hears the warning tone, they have the option of dialing a
code to continue the conversation or disconnect.
Trunk Continue/Disconnect Codes
Users have the option to use a Continue or Disconnect service code. The Continue service code
extends the conversation for a programmed time. If the user enters the Disconnect service code, the call
is immediately disconnected.
Example:
The following example indicates how a call will be handled with the system programmed as follows:
Program 14-01-25: 1
o
Program 20-28-01:
o
Program 20-28-02: No Setting
o
Program 20-28-03: 180
o
Program 24-02-07: 600 (Used only with manually transferred Tandem Trunk calls)
o
Program 24-02-10: 30 (Used only with manually transferred Tandem Trunk calls)
o
Program 25-07-07: 600 (Used only with automatically transferred Tandem Trunk calls or DISA calls)
o
Program 25-07-08: 30 (Used only with automatically transferred Tandem Trunk calls or DISA calls)
o
1. An external call connects to an external number (either by transferring with Tandem Trunking or by DISA
caller).
Direct Inward System Access (DISA)
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