| DISA( )
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Direct Inward System Access: allows inbound
callers to make outbound calls
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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 the pound sign
(#). If the passcode is correct, the user is then given a
system dial tone on which a call may be placed.
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Obviously, this type of access has serious
security implications, and extreme
care must be taken not to compromise the security of your phone
system.
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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, put 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})
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