SmartTrunk Systems SmarTrunk II, System Overview, Page: 27 / 57

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SmarTrunk Systems, Inc.
• Multiple ST-510 Switches:
Larger networks may use multiple ST-510 switches, requiring only one low
speed data bus (from 4800 baud) to link the switches. As with the single
switch scenario, this service allows customers to locate any subscriber in the
entire network simply by dialing the subscriber’s number. In this scenario, the
number of audio paths (links) required in the system depends on the antici-
pated roaming traffic between the sites.
The definition of the roaming areas and the associated subscriber profiles are
created automatically using the comprehensive management software included
with the system.
Voice Mail
If a subscriber is unable receive a call, the ST-510 will connect the calling party
to an audio file containing the subscriber’s voice prompt messages. The sys-
tem has three voice mail greetings for each of the following situations:
• Mobile is powered off or is out of range
• Mobile is in range but the subscriber does not answer the call
• All incoming calls automatically forwarded to voice mail service
After the system plays the appropriate greeting message, it will record the
caller’s message. The length of the message is programmable for each sub-
scriber.
All subscriber messages are digitally recorded on the hard disk of the ST-510.
When a subscriber wishes to listen to his/her messages, he/she will dial 111*
from their radio and the system will play back the number of messages in
memory and will indicate the date and time of each message.
During message playback, the subscriber can command the system to request
a new message, repeat the last message, delete messages, etc., using the radio
keypad. The quantity of messages in memory for each subscriber will depend
of the hard disk capacity of the system. If necessary, a hard disk array can be
added to the system.