5.2.7  
Direct Inward System Access (DISA) 
 
Implementing features, see also Manager E DISA (Direct Inward System Access)

Definition  
Direct inward system access (DISA) enables users to use features in the HiPath 3000/5000 system via an external connection. External callers must enter a password to gain access to the system. They can then use certain system features just like an internal user. They can also set up an outgoing external seizure via the incoming external connection.
Users can use the following features via DISA:
 •   Direct services for internal stations:
Send message texts, relay on/off, night answer on/off, advisory message on/off, group ringing on/off, lock code on/off, do not disturb on/off, call forwarding on/off, leave/join hunt group, reset services.
 •   Associated services:
Advisory message on/off, group ringing on/off, lock code on/off, do not disturb on/off, call forwarding on/off, leave/join hunt group, reset services.
An internal station can also be reached via DISA. In the case of a fixed numbering plan (such as in France), virtual networking is also possible.
The DISA access line can be configured as dedicated, or it can be accessed during day or night operation; these parameters are set in the General Flags of Lines/Networking/Parameters tabs in HiPath 3000/5000 Manager E; in the DISA day/night field, code receiver (CR) parameters can be configured for each line.
One of the following options may be selected:
 •   Line always has CR connected
 •   Line has CR connected during day only
 •   Line has CR connected during night only
 •   Line has no CR connection
The DISA trunk is released at the completion of each function/feature. The user must reenter the system if another function needs to be accomplished.
The stations authorized to access the system via DISA must first be configured in System Administration.
A DISA trunk can be a DID number or a LS/GS trunk. If the DISA trunk is a DID number, this number is programmed in System parameters. The field allows up to 12 digits. If the trunk is LS/GS, the trunk is programmed in the Ringing Assignments.
A password is required to log onto the system. This password consists of the internal station call number and the lock code PIN. The password entered is only confirmed after a timeout or by pressing the # key. This selection is system-wide and is done in the System Parameters.

Model-Specific Data  

 Subject  
 HiPath 3800  
 HiPath 3550  
 HiPath 3500  
 HiPath 3350  
 HiPath 3300  
Feature available in  
 x  
 x  
 x  
Hardware requirements  
 -  
 -  
 -  
Software requirements  
 V5.0 or later  
 V1.0 or later  
 V1.0 or later  

Dependencies/Restrictions  

 Subject  
 Dependency/Restriction  
Analog trunk  
Night service  
Analog trunks can be programmed for DISA access. They can be used as normal analog trunks during the day and then switched over to DISA mode when the night answer function is activated.  
Call data output  
DISA calls are specially marked in call data output.  
System speed dialing  
The system speed-dialing memory can be used via DISA.  
Trunk  
The trunk is released each time you activate the service.  
HiPath 5000  
The feature DISA is not supported by HiPath 5000.  

HiPath 3000/5000 V8, Feature Description, Issue 10   up Top
Disclaimer & Copyright   ID: P31003H3580F100017618   2011-02-07