DISA
[Synopsis]
Direct Inward System Access.
[Description]
The DISA, Direct Inward System Access, application allows someone from outside the telephone switch (PBX) to obtain an *internal* system dialtone and to place calls from it as if they were placing a call from within the switch. DISA plays a dialtone. The user enters their numeric passcode, followed by the pound sign '#'. If the passcode is correct, the user is then given system dialtone within <context> on which a call may be placed. If the user enters an invalid extension and extension 'i' exists in the specified <context>, it will be used. Be aware that using this may compromise the security of your PBX. The arguments to this application (in «extensions.conf») allow either specification of a single global <passcode> (that everyone uses), or individual passcodes contained in a file (<filename>). The file that contains the passcodes (if used) allows a complete specification of all of the same arguments available on the command line, with the sole exception of the options. The file may contain blank lines, or comments starting with '#' or ';'.
[Syntax]
DISA(passcode|filename[,context[,cid[,mailbox[@context][,options]]]])
[Arguments]
passcode|filename
If you need to present a DISA dialtone without entering a password, simply set <passcode> to 'no-password' You may specified a <filename> instead of a <passcode>, this filename must contain individual passcodes
context
Specifies the dialplan context in which the user-entered extension will be matched. If no context is specified, the DISA application defaults to the 'disa' context. Presumably a normal system will have a special context set up for DISA use with some or a lot of restrictions.
cid
Specifies a new (different) callerid to be used for this call.
mailbox
Will cause a stutter-dialtone (indication *dialrecall*) to be used, if the specified mailbox contains any new messages.
options
n: The DISA application will not answer initially.
p: The extension entered will be considered complete when a '#' is entered.
[See Also]