1204 Matrix PRASAR UCS System Manual
• The VMS finds DISA is enabled on the trunk and prompts the caller: “Please enter the Extension Number.”
and starts the First Digit Wait Timer (programmable; default: 25 seconds).
• The caller must dial the DISA Extension Number before the expiry of this timer.
• The VMS checks the CoS of the dialed Extension Number.
• DISA is enabled in the CoS of the dialed Extension Number, the VMS prompts: “
Please enter your
password.” and waits to receive digits till the expiry of the First Digit Wait Timer.
• The Password must be dialed by the caller before the expiry of this timer.
• The VMS checks if the Password is valid.
• The Password is valid and the DISA Login is successful. The caller is logged into the dialed Extension
Number.
• The VMS hands over the DISA call to the PRASAR UCS.
• When the caller goes Off-hook by dialing the Off-hook code #1, the system plays the internal dial tone and
waits for the caller to dial digits.
• The system collects the digits dialed by the caller and then routes the call.
• The caller can make as many trunk calls and internal calls as the caller wants.
• The caller can terminate the DISA login session either by disconnecting from the remote end or by dialing
the Termination Code #9.
The VMS plays the default Greeting Message, Welcome Greeting and DISA prompts to the callers. You can
customize them as per your requirement, if required.
How to configure
• For instructions to enable DISA-PIN Authentication-Multiple Calls and Voice Mail Auto Attendant on the
desired trunks, see the topic “Trunk Feature Template” in Configuring Trunks.
• For instructions to enable DISA in the CoS of the extensions which you want to allow callers to access
using DISA, see “Class of Service (COS)”.
• To change the default User Password (1111) of the extensions which you want to allow callers to access
using DISA, see “User Password” and “System Security”.
• To set the DISA Timers as per your requirement, see “System Timers and Counts”.
• To customize the DISA prompts as per your requirement, see “Recording Voice Messages”.
• To upload the customized Voice Prompts, see “Prompts Management”.
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