
STM200
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3.2 CALL BLOCKING
3.3 CALL HANDLING BY REMOTE MANAGEMENT
• The Modem - Communicator STM200 is designed to be able to respond to incoming telephone calls originating
from a Remote Management Center using “Fast Link” software. In this case, the Center can connect to the
System’s Central Bus by modem and carry out the required operations.
TheAnswering Machine function is activated from the System Engineer’s / Installer’s and the Remote Surveillance
menus (paragraph 6.20).
If activated, it is possible to program the modem to answer (taking control of the line and making it “busy”) after
a certain number of rings. In the case that the Center receives a signal, indicating that there is an alarm event
to manage, they will immediately interrupt the call to start the normal call cycle to the pre-programmed numbers.
NOTE:Check that the RS232 cable for the Central Bus - local PC connection IS NOT inserted,
otherwise the answering machine function WILL NOT be active.
• The answering machine bypass is a function of the system and it is always active but it is not programmable from
a menu. Its purpose is to bypass an answering machine or fax that might be on the same telephone line as the
MP200byforcingthesystemtoansweracallcomingfromaRemoteManagementCenterbeforetheothermachines
cando so.Thebypass answeringmachinefunction isaprerogative ofthe Remote Management Center which must
have the Fast Link software with the function enabled. To optimize the procedure, we recommend that you set the
answering machine or fax to at least 2 rings and to enable the answering machine function (paragraph 6.20) of the
MP200programming the number of rings to beGREATERthanthe number of rings setas the number of rings auto-
answer on the answering machine or fax.
• The mechanism functions like this:
1.On receiving the first ring of the first call, the MP200 senses the incoming call but DOES NOT pick up the line
(which would cause it to be “busy”) since it must first count a certain number of rings.
2.The Remote Management Center hangs up, interrupting the call after the first ring and after a pre-programmed
delay (from 5 to 30 sec.), they make a second call. This operation is done automatically by the Fast Link
software that the Center must have.
• On receiving the first ring of the second call, the MP200 immediately picks up the phone, thus occupying the line
and connecting to the Remote Management Center, without waiting to count the number of rings. This way the
answering machine or fax is bypassed, having received only 1 ring, leaving the line free for the MP200 bus.
3.4 BYPASSING THE ANSWERING MACHINE
• A cycle of calls that was generated accidentally can be blocked. The way to block the call cycle depends on the
timing of the call delay (paragraph 6.11) and on the type of event transmitted.
- If a call delay has been programmed for an Intruder Event (Instant, Delayed, Path Delay, Last Exit) introducing
a valid key (DK40) in a key reader or entering a valid access code (User, System Engineer / Installer, Remote
Management) on the keypad within the delay time will completely block the call cycle. The involved sensors
(outputs) will also be deactivated.
For alarms of the Theft / Intruder 24hr (24hr silent, 24hr with siren, Tamper / Sabotage), 24H (Panic with
siren, Silent Panic, Fire, Technological) or Control (Fault) types, the call cycle will be blocked only by entering
the System Engineer’s / Installer’s access code, if it has been enabled.
- If a call delay has not been programmed, an alarm event in any case will cause the system to call the first
programmed telephone number of the call cycle. The voice or modem calls to the following numbers can be
blocked with a key or an access code, as described above. However, the telephone numbers following the first
one, which are programmed in numeric mode, will be placed without any possibility to block them.
• In the case of voice calls to more than one telephone number, the user that answers can interrupt the call cycle
to the numbers that follow by entering the number “12” (in DTMF) on the telephone at the end of the message
after hearing a particular sounding tone emitted by the central system.