Vertical Communications SCS 8324S - Manual (Page 92)

Other Features
82 Comdial August, 03
7.4 Direct Inward System Access (DISA)
The Direct Inward System Access (DISA)* feature allows you to call
into the digital communications system from an external telephone.
You can call directly to intercom extensions and talk to the intercom
parties or, if the system includes a voice mail option, leave messages
for them if they are not available. When you call the DISA telephone
number and dial your authorization code, the system treats your call
as it would treat one coming from a system telephone and permits you
to use many of the same features that you can use when you are
calling from your assigned station. (Authorization codes are asso-
ciated with personal or group intercom numbers and are assigned to
you by your installer when he or she programs the system.)
If you use your DISA access to make a call through the system and
out on an outside line, the system applies all the toll restriction and
automatic route selection to the call that the installer has programmed
for the line that you are using. If you dial an incorrect authorization
code, or the system is busy with other DISA calls, you will either hear
an error tone, or the system will automatically route your call to one
of the following areas (as determined by your system installer):
• a designated station where you can talk to the system attendant,
• a digital voice announce that will prompt you to take additional
action,
• a proprietary voice mail station where you will be prompted to
leave a message.
The system allows you three tries at dialing your authorization code
before it routes your call as detailed above.