Matrix Vision System Manual page 103

Step 3
DOSA Inactivity Timer-Time after which the system gives warning beeps to the caller:
Command : 3020-Seconds
Default : 60 seconds.
Valid Range : 000 to 255 seconds.
Step 4
DOSA Warn Timer-Time after which the system disconnects the call.
Command : 3021-Seconds
Default : 15 seconds.
Valid Range : 000 to 255 seconds.
Example:
Station : 23 (software port 02)
Trunk : 0
COS group : 7 (DOSA enabled)
COS group : 4 (DOSA disabled)
Disable DOSA during day time
Enable DOSA during night time
3601-1-0-0
3602-1-0-1
4610-1-02-4
4611-1-02-7
Important Points:
• DOSA facility can be enabled on one or more trunks.
• DOSA can be enabled/disabled for day and night modes independently.
• DOSA inactivity timer is the time for which a line remains active even after the call is finished if the user
forgets to log out by dialing '#0'. Hence it is advisable to program this timer for optimum period.
• Because of poor line conditions, it is possible that DOSA facility may not work.
• A DOSA call gets stored in the buffer just like other calls and it is indicated by a letter 'O' in the remarks'
column.
• Abbreviated Dialing is allowed through DOSA.
DOSA facility allows remote users to make long distance calls. It is advisable for all the users to understand the
power and cost implication of this facility and hence enable this facility very carefully. It is strongly
recommended to protect this facility with a unique password.
Relevant Topics:
1. Voice Message Applications 205
2. Class of Service (COS) 70
Vision System Manual
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Matrix
103