Call Waiting Defeat Logic - ADEMCO VISTA-32FB Installation And Setup Manual

Conditions That Affect Cross-Zone Operation
1. In the event of a continuous fault (lasting at least 5 minutes) on one of the paired zones, a
fault on the second zone will cause an alarm immediately.
2. If one of the zones in a pair is bypassed or has a zone response type set to 0, the cross-
zoning feature will not apply.
3. If an entry/exit zone is paired with an interior follower zone, be sure to enter the
entry/exit zone as the first zone of the pair. This will ensure that the entry delay time is
started before the follower zone is processed.
4. If a relay is programmed to activate on a fault of one of the zones, the relay will activate
without the other zone being faulted.
5. If a relay is programmed to activate on either an alarm or trouble, both zones must trip
before the relay will activate, and both zones must be restored for the relay to deactivate
(if relay is programmed to deactivate on a Zone List Restore).

Call Waiting Defeat Logic

Although this option does not directly prevent false alarms, it may prevent the central
station from taking action on a potential false alarm. After the panel's initial call to report
the alarm, the panel may attempt to make an additional call, perhaps for a cancel or a zone
restoration. If Call Waiting is not defeated, an operator at the central station attempting to
contact the premises (to verify whether the alarm is valid) would hear the phone ringing
indefinitely and have to dispatch on the call.
This option, enabled in program field 1 42, attempts to defeat Call Waiting on the first
outgoing call attempt to both the primary and secondary numbers. It does this by dialing a
special sequence preceding the phone number (but after the PABX number). The panel will
dial 70 if using touchtone and 1170 if using rotary.
The panel does not attempt to defeat Call Waiting on each call attempt because the phone
company may not complete the call if the sequence is dialed on a phone line that does not have
Call Waiting.
Section 3 – False Alarm Reduction Features
3–3