Matrix ETERNITY NE System Manual 573
To use DISA, 
• Dial the number of the Trunk on which DISA is enabled for the current time zone, i.e. Day or Night.
• ETERNITY answers the call. You will get music or DID Voice Message, if configured.
If DISA PIN Authentication-Multiple Calls is enabled, 
• You will get beeps at the end of music/DID Voice Message.
• Dial DISA Login Code 1079 during the beeps.
• Dial the extension number. You will get beeps.
• Dial the User Password for the extension during the beeps.
• You get dial tone on successful login.
• Dial the special digits #1 to go Off-hook, #0 to go On-hook, and make your calls like any local extension. 
For example, making an external call, dial Trunk Access Code '0' to grab a trunk and dial the number.  
• To terminate DISA session dial #9 or disconnect the call from your (remote) end.
If DISA CLI Authentication-Multiple Calls is enabled,
• You will get system dial tone at the end of music/DID Voice Message.
• Dial the special digits #1 to go Off-hook, #0 to go On-hook, and make your calls like any local extension.
• To terminate DISA session dial #9 or disconnect the call from your (remote) end.
If DISA CLI Authentication - One Call is enabled,
• You will get Trunk dial tone at the end of music/DID Voice Message.
• Dial the external number, without the Trunk Access Code.
• The DISA session will be terminated when you or the remote called party disconnects.
• To make another call, you must number of the DISA enabled trunk again.
The following features of ETERNITY NE are not supported in DISA mode:
• Auto Call Back
• Auto Redial
•Call Park
• Call Chaining
• Self Ring Test
• Trunk Reservation.
End of String #*
Special Digit/activity  Code to be dialed