DISA() — Direct Inward System Access: allows inbound callers to make outbound calls
DISA(password[,context[,callerid[,mailbox[@vmcontext]]]]) DISA(password-file[,callerid[,mailbox[@vmcontext]]])
Allows outside callers to obtain an “internal” system dial
tone and to place calls from it as if they were placing calls from
within the switch. The user is given a dial tone, after which she should
enter her passcode, followed by #. If
the passcode is correct, the user is then given a system dial tone on
which a call may be placed.
Obviously, this type of access has serious security implications, and extreme care must be taken not to compromise the security of your phone system.
The password argument is a numeric
passcode that the user must enter to be able to make outbound calls.
Using this syntax, all callers to this extension will use the same
password. To allow users to use DISA() without a password, use the string
no-password instead of the
password.
The context argument specifies the
context in which the user will be dialing. If no context is specified,
the DISA() application defaults the
context to disa.
The callerid argument specifies a new
Caller ID string that will be used on the outbound call.
The mailbox argument is the mailbox
number (and optional voicemail context,
vmcontext) of a voicemail box. The caller
will hear a stuttered dial tone if there are any new messages in the
specified voicemail box.
Additionally, you may use an alternate syntax and pass the name of
a global password file instead of the
password and
context arguments. On each line, the file may
contain either a passcode, or a passcode and context, separated by a
pipe character (|). If a context is
not specified, the application defaults to the context named disa.
If the user login is successful, the application parses the dialed
number in the specified context:
; allow outside callers to call 1-800 numbers, as long
; as they know the passcode. Set their Caller IDs to make
; it appear that they are dialing from within the company
[incoming]
exten => 123,1,DISA(4569,disa,"Company ABC" <(234) 123-4567>)
[disa]
exten => _1800NXXXXXX,1,Dial(Zap/4/${EXTEN})