Tema Telecomunicazioni AD633 User manual

AD633
VoIP SIP 12W PoE Ceiling Speaker
Serie Audio Over IP Network
PRODUCT MANUAL
Version HW 1.0 - Version SW 1.10
Revision
Date
Revision reason
Prepared
Checked/Approved
1 21/02/2018 Update MM, DP DP, FL
TEMA TELECOMUNICAZIONI
“IP COMMUNICATION AND SECURITY COMPANY”
WWW.TEMATLC.IT
Products for VoIP SIP LAN networking Communications, Paging Amplifiers Systems and
Audio Applications. Zone Announcements, Night Ringer, Multicast general call,
Background music, Standard SIP call or Emergency call, SD memory with pre-recorded
me
ssages, Relays for LAN drives.

TEMA TELECOMUNICAZIONI VoIP SIP 12W PoE Speaker AD633
MAS-AD633-REV01 Page 2 of 48
We, TEMA TELECOMUNICAZIONI SRL Via C. Girardengo, 1/4 - 20161 MILANO
declare under our sole responsibility that the product:
Product name Altoparlante VoIP SIP 12W PoE da soffitto
Trade name TEMA TELECOMUNICAZIONI Srl
Type or model AD633
and accessories --
to which this declaration relates is in conformity with the essential requirements and other
relevant requirements of the R&TTE Directive ( 1999/5/EC, 2006/95/EC, 2004/108/EC ).
The product is in conformity with the followings standards and/or other normative documents:
HEALT & SAFETY EN 60950-1:2006 +A11:2009 +A1:2010 +A12:2011
EMC EN 55022:2010, EN 55024:2010, EN 61000-3-2:2006
EN 61000-3-3 :2008
MILANO, 20 February 2017 TEMA TELECOMUNICAZIONI SRL
D. Pontillo
I. IMPORTANT INFORMATIONS REGARDING THE RECOVERY AND RECYCLING OF THIS
ELECTRONIC DEVICE
DICHIARAZIONE DI CONFORMITÀ CE
DECLARATION OF CONFORMITY CE
The crossed
-
out wheeled bin symbol below indicates that this electronic equipment is
intended to be disposed in a separate collection and not in an unsorted municipal
waste, in order to provide for the treatment of WEEE (Waste Electrical and Electronic
Equipment) using best available recovery and recycling techniques. Specific treatment
for WEEE is indispensable in order to avoid the dispersion of pollutants and other
hazardous substances into the waste stream, while recycling leads to reduction of
disposal of waste and the negative impacts on environment and human health. That is,
priority is given to reuse of WEEE in its components, subassemblies and
consumables. As the final holder, the user has an important role in contributing to
reuse, recycling and other forms of recovery of WEEE and is responsible to return this
waste in the collection facilities set up by EC Member States and to fulfill other duties
in compliance with Directive 2002/96/EC and local laws.
UNI EN ISO 9001:2008
TEMA TELECOMUNICAZIONI is a certified company
The crossed
-
out wheeled bin symbol below indicates that this electronic equipment is
intended to be disposed in a separate collection and not in an unsorted municipal
waste, in order to provide for the treatment of WEEE (Waste Electrical and Electronic
Equipment) using best available recovery and recycling techniques. Specific treatment
for WEEE is indispensable in order to avoid the dispersion of pollutants and other
hazardous substances into the waste stream, while recycling leads to reduction of
disposal of waste and the negative impacts on environment and human health. That is,
priority is given to reuse of WEEE in its components, subassemblies and
consumables. As the final holder, the user has an important role in contributing to
reuse, recycling and other forms of recovery of WEEE and is responsible to return this
waste in the collection facilities set up by EC Member States and to fulfill other duties
in compliance with Directive 2002/96/EC and local laws.
UNI EN ISO 9001:2015
TEMA TELECOMUNICAZIONI is a certified company

TEMA TELECOMUNICAZIONI VoIP SIP 12W PoE Speaker AD633
MAS-AD633-REV01 Page 3 of 48
RECOMMENDATIONS
1. It is recommended to read this entire manual before proceeding to the installation of the device.
2. The installation and commissioning of the device can only be performed by specialized technicians.
3. The device is accurately manufactured and tested. In any case, the product is not recommended for use
where an error of operations can cause property damage and/or injury to persons.
4. It is expressly not recommended maintenance inside the device which must be carried out by Tema
Telecomunicazioni, the removal of the closures will invalidate the warranty and makes accessible internal
parts with risk of electric shock.
5. Tema Telecomunicazioni accepts no responsibility for damage to property and/or persons resulting from
incorrect use of the equipment or by procedures that do not comply with the instructions in this manual.
Tema Telecomunicazioni reserves the right to make modification to the technical and functional
specifications at any time and without any notice.
6. Products powered via PoE (Power over Ethernet) may only be connected with cables coming from the
internal network company (inside the building), are not allowed connections LAN cables coming from outside
the building.
7. Use for this device only and exclusively original spare parts and consumables supplied by Tema
Telecomunicazioni. The company is not responsible for damage caused by the use of materials not supplied
by the same.
8. Do not expose the unit to direct sunlight, protect from heat, dust, humidity and chemicals.
9. Tema Telecomunicazioni reserves the right to vary the product characteristics for improvement without prior
notice. Check the WWW.TEMATLC.IT website for any updates to the latest firmware, manuals, and
technical documentation.
10. This document is property of Tema Telecomunicazioni, It is forbidden any duplication and reproduction, even
partial, as well as storage on any medium without written permission of Tema Telecomunicazioni.
This symbol in the descriptions indicates a general warning or a d
amage danger
to equipment or people.
Th
is symbol in the descriptions indicates useful information or a suggestion for
the optimization of the device functionality.

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1. PRESENTATION ........................................................................................................................................ 5
2. FEATURES.................................................................................................................................................. 7
3. PACKING LIST ........................................................................................................................................... 7
4. TECHNICAL SPECIFICATIONS ............................................................................................................... 8
5. OPERATION................................................................................................................................................ 9
5.1. D EVICE CONNECTION DIAGRAMS ..........................................................................................................................9
6. OPERATING MODES............................................................................................................................... 10
6.1. C ALLS TO DEVICES ...........................................................................................................................................10
6.2. RELAY FUNCTION ...........................................................................................................................................10
6.3. C ALLS GENERATED FOR ACQUISITION OF EXTERNAL CONTACTS FOR SPECIAL SIGNALINGS ........................................10
6.4. M ULTICAST A UDIO S TREAMING .........................................................................................................................11
7. COMMANDS AND CODES...................................................................................................................... 11
8. INSTALLATION OF THE DEVICE .......................................................................................................... 12
8.1. M OUNTING AND POSITIONING OF THE AD633 SYSTEM ..........................................................................................12
8.2. A CCESS TO INTERNAL PARTS - CABLE PASSAGE ..................................................................................................12
8.3. C ONNECTING OF THE AD633 INTERNAL MODULE .................................................................................................13
8.4. C ORRECT CONNECTION OF AN ADDITIONAL PASSIVE SPEAKER ..............................................................................15
8.5. 100V AUDIO LINE FOR ADDITIONAL SPEAKERS AWAY FROM AD633 IP S PEAKER .....................................................16
9. PROGRAMMING ...................................................................................................................................... 17
9.1. P REPARATION FOR THE SYSTEM PARAMETERS PROGRAMMING ..............................................................................17
9.2. A CCESS TO PROGRAMMING ...............................................................................................................................19
9.3. N ETWORK PARAMETERS ...................................................................................................................................20
9.4. SIP P ARAMETERS ...........................................................................................................................................21
9.5. G ENERAL PARAMETERS ....................................................................................................................................22
9.6. S ET OF THE OPERATING MODE ..........................................................................................................................23
9.7. R ELAY AND ALARM INPUT SETTINGS ...................................................................................................................24
9.8. C AMERA .........................................................................................................................................................25
9.9. C ALL BUTTONS ................................................................................................................................................26
9.10. M ESSAGES MANAGEMENT ...........................................................................................................................27
9.11. A UTOMATIC A NNOUNCEMENTS .....................................................................................................................29
9.12. C ALLS R EPORT ..........................................................................................................................................31
10. MAINTENANCE........................................................................................................................................ 32
10.1. S YSTEM ....................................................................................................................................................32
10.2. L OGIN CREDENTIALS ...................................................................................................................................33
10.3. D IAGNOSTIC LOGS ......................................................................................................................................33
11. PRESENTATION AND USE OF THE "AA Video Console" SOFTWARE ........................................ 34
11.1. P RESENTATION ..........................................................................................................................................34
11.2. S OFTWARE CONFIGURATION FOR SIP S ERVER MODE .....................................................................................35
11.3. S OFTWARE CONFIGURATION FOR P EER -T O -P EER MODE .................................................................................36
12. Introduction to AA-Video Console APP version for operating systems iOS............................... 37
12.1. D OWNLOADING AND INSTALLING THE APP ......................................................................................................37
12.2. U SING THE APPLICATION .............................................................................................................................39
13. Introduction to AA-Video Console APP version for ANDROID systems ...................................... 39
13.1. D OWNLOADING AND INSTALLING THE APP ......................................................................................................39
13.2. U SING THE APPLICATION .............................................................................................................................41
14. APPENDIXES............................................................................................................................................ 43
14.1. A PPENDIX 1: O THER EXAMPLES OF M ULTICAST A UDIO S TREAMING APPLICATIONS .............................................43
14.2. A PPENDIX 2: U SE OF THE VLC M EDIA P LAYER SOFTWARE AS A M ULTICAST E NCODER FOR AUDIO FILES ..............45
14.3. A PPENDIX 3: U SE OF THE AUDACITY SOFTWARE FOR AUDIO FILES RECORDING ...............................................46
14.4. A PPENDIX 4: C ABLING OF A UTP RJ45 NETWORK CABLE ACCORDING TO THE STANDARD EIA568B.....................47
INDEX PAGE

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1. PRESENTATION
AD633 allows to realize Paging Amplification Audio Sound Systems in a standard LAN network completely
integrating with IP-PBX SIP in order to be able to play announcements from any telephone in the internal network
and any technologies: analog, SIP, Smartphones and Softphones.
Access can be authorized by Password with code to be typed before starting the announcement. Two internal
relays can be programmed to be automatically activated when it is called or to be controlled from the phone via
LAN that originated the call to the AD633 speaker, eg. to report the event to any auxiliary devices connected
downstream.
The system programming is done remotely via LAN thanks to the integrated Web server. AD633 incorporates an
efficient Class-D 10W (2x5W) amplifier.
2nd SIP Account – Night Ringer. AD633 can be registered on the PBX with a second telephone number, different
from the one used for ads and inserted in the night ring group. To the arrival of an incoming call, the system plays a
sound (user selectable) to all the network speakers. The volume can be adjusted independently of the others
managed audio channels.
Inputs from external contact with a variety of functions, for example: provide to make a SIP call to a
preprogrammed number and inform the operator of the event with an appropriate voice message. The signaling
can be repeated a number of programmable times, the operator can interrupt the sequence with a keyboard code.
Other examples of use will follow in this manual.
Multicast Audio Streaming for music and announcements diffusion. AD633 handles up to 5 multicast channels in
LAN with priority levels to allow the background music broadcasting on loudspeakers network. The generation of
musical programs in streaming audio can be managed from a PC of the LAN/WAN network with special software or
special TEMA Encoder.
Service "SIP Security Info Call" - Emergency SIP Call. By connecting a button or an external contact, AD633 can
call a phone number programmed to alert the event with a specific warning message. It is a security service for
emergencies or simple request for help and information, and allows a one-way phone call.
Total remote management via LAN, integrated Web Server. Programming, configuration, loading and listening to
audio files, firmware release update, audio volume adjustment, backup and restore the configuration, device
reboot.
Possibility to connect one or more external passive loudspeakers on the 2nd amplifier to expand audio coverage
of the served area.
AD633 can be powered with an external power supply, or only from the LAN cable via PoE, the two power sources
can coexist.
Tested with most popular P X brands:
SIEMENS - AVAYA - ALCATEL – PANASONIC – SAMSUNG - NEC -
LG
WILDIX - AASTRA - ASCOM - VT NITSUKO - SELTA – PHILIPS

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VoIP SIP Amplifiers-Speakers Products and Accessories of the AD600 “SipComStage” series
AD610
2X2W PoE IP-
SIP Amplifier Module,
External Amplifier Adapter with Sound Isolati
on
Transformer. Directly pilot external power
amplifiers or 8 Ohm external passive speakers.
AD611
IP-
SIP PoE 10W Amplifier Module
(2X5W). Directly pilot 8 Ohm external passive
speakers.
AD633
IP-SIP speaker 12W PoE
open-to-ceiling version.
AD635
IP-
SIP PoE 12W speaker for wall
mounting with the possibili
ty of integrating a PoE
injector adapter.
AD333/12XTP
Passive 8 Ohm 12W
speaker with anti-
flame cover (AD333/12TP
without cover), internal transformer for 100V
audio line. Ideal for connecting to AD610-611-
612
or as 2nd speaker to the AD63x series IP-
SIP
speakers.
AD335/06TP
Passive 8 Ohm 6W speaker
with 100V audio line transformer. Ideal for
connecting to AD610-611-
612 or as 2nd speaker
to the AD63x series IP-SIP speakers.
AD330/25T
Passive horn speaker 25W 8
ohm with transformer for 100V audio line. Ideal
for connecting to the AD610-611-
612 modules or
as 2nd speaker for AD63x IP-
SIP speakers
series.
AD330/
Are
available Speakers of
different pow
er, Horns and Loudspeakers for
flush and ceiling mount.
AA
-
39DL
Plug Power Supply 220Vac/12Vdc-1,0A.
AA
-
39D1A
DIN Power Supply 220Vac/15Vdc-1,0A.
A
A
-
39P4
PoE injector 230Vac/48Vdc 0,5A.
AA
-
39E3 /
-
E6V
DIN Power Supplies 220Vac/24Vdc-1,5A
220Vac/24Vdc-2,5A.
AA
-
36
Protected Power Relay
Actuator 250Vac/16A/4KVA, command in
AC/DC 12V/24V, 1 contact, Led, contacts
protected by electric arcs.
Ideal for
driving loads up to 4.000W.
AD612
IP-
SIP PoE 40W (2x20W) Amplifier
Module when powered with an external power
supply.
Directly pilot 8 Ohm external passive
speakers.
AA
-
699
Flash lights with Xeon
lamp or high brightness LEDs. Ideal to be
controlled by the relay of the IP-
SIP
speakers of the AD630 series or by the
IP-
SIP amplifier AD610, AD611, AD612
modules, with a call in progress add a
light signal to the acoustic signal.
AD320/30
PA 100V audio line
transformer 30W, constant voltage, high
efficiency toroidal type with low magnetic
flux leakage.
AD32
Isolation transformer, balanced,
mixer,
attenuator, audio signal filter, low
impedance output. Ideal for decoupling
devices of audio sources to other
amplifiers to eliminate noises.
AD615/S
Audio Encoder Module from
analog to d
igital on LAN Network in
Multicast/Broadcast Channels.
AD301R
30W analog amplifier,
2 channels, Volume-High-Low +/-
12dB
controls
AD630
IP-
SIP PoE 25W Horn Speaker
with 40W internal amplifier (2x20W) IP65
protection.
AD633C
SIP IP-
12W PoE Speaker ceiling
version with IP54 flameproof cover.

TEMA TELECOMUNICAZIONI VoIP SIP 12W PoE Speaker AD633
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2. FEATURES
• IP 12W PoE Speaker for indoor installation.
• Audio output power 10W (2x5W)
• Possibility to register a second SIP account for the "Night Ringer" feature
• 5 RX Multicast Channels for Music/Ads/Messages diffusion with 5 priority levels
• 2 remote controlled relays via LAN
• 1 multifunction input from external contact
• Possibility of playing a pre-recorded announcement, associated with the available input, or up to 6
announcements by making a call and sending the respective code via telephone
• Notification service with dedicated messages following external event
• 2 buttons inputs for direct call to SIP numbers differentiated by communication/alert
• “SIP Security Info Call” warning/emergency telephone call, sending of pre-recorded messages on
loudspeakers and on the called
• "Push to Talk" function to control the direction of communication from an external button (Not included)
• Independent adjustment of audio volumes: communications, multicast, night ringtone, alert tones
• SD memory card with audio files from 16sec. customizable by the user (opt. up to 960min. - 16h audio)
• Great versatility with ease of use and programming
• VoIP connection with standard SIP Proxy Server protocol
• Compatibility with all IP-PBX of the most prestigious brands
• P2P (Peer to Peer) for operation also without IP-PBX
• Power supply via PoE (Power over Ethernet) with a single UTP cable or external power supply, also at the
same time
• Free APP developed for smartphones/tablets with iOS and Android operating systems
• AA-Videoconsole software for Windows XP/7/10 PC for management of TEMA IP terminals included
• Programming via dedicated Web Interface with password protection
• Possibility of software / firmware update via LAN
• Integration with the local LAN, 100BaseT Ethernet LAN port with RJ45 connector
• Integrated PoE 802.af, one UTP cable for connection
• Dimensions diameter 200 mm, depth 90mm, 100mm with connected cables (165mm fixing hole)
• Retractable fastening fasteners with sealing spring
• Mounting on vertical panels, false ceilings, etc.
• Possibility of receiving and sending MULTICAST RTP audio streaming, for paging audio announcements, up
to 16 priority levels (in reception) and with different volumes for each channel
• Audio streaming with high quality codecs
• Possibility of diffusing pre-recorded announcements at pre-established times (up to 5 for each day of the
week)
• Possibility of diffusing a pre-recorded daily announcement, at a set time or manually controlled, with
programmable interval and repetitions
3. PACKING LIST
The systems are supplied with the parts included in the following list:
• One speaker device code AD633
• A printed system documentation, installation, programming, use manual
• A CD-ROM with complete documentation

TEMA TELECOMUNICAZIONI VoIP SIP 12W PoE Speaker AD633
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4. TECHNICAL SPECIFICATIONS
LAN
TCP/IP Network 10/100BaseTx
Protocols
SIP 2.0, RFC 3261
RTP Multicast audio Streaming
G711µ, G711a, G722, L16 from 16 to 44 kHz
Connection
SIP Server (IP
-
PBX) o
r
P2P (Peer To Peer)
Power Supply
PoE, PoE Injector and/or
external
Ac/Dc
power supply
PoE
802.3af class
0 12,95W
External Power Supply
(Op
t
.)
230Vac / 12
-
15
Vdc
-
1A, 24Vdc
-
2A
Tec
hnology
IMX25 400MHz
Microprocessor
Memory
256MB Ram, M
icro
-
SD Flash 2GB
Programming
practical Web interface and password
APP
for Smartphones
iOS, Android
Messagges/S
o
unds
prerecorded in the internal SD memory card
Audio File Format
Windows .wav
–
8K
–
16 bit
Duration
16sec each
. Standard (Option
up to 960 min.
16H audio)
Bandwidth
300Hz
–
7KHz
Power
Class
-
D 10W
(2x5W)
amplifier
S
ound pressure
102dB A (SPL)
D
ispersion angle
130° @ 2KHz
Audio communication
Unidirectional / Bidirectional / Push to Talk
Internal Microphone
Omni
-
directional electr
et 30Hz
-
18KHz
A
dditional speaker output
1 output for external speaker, passive
,
impedance 8 Ohm
A
utomatic
c
heck mode
Through self audio feedback
Inputs from buttons
or external contacts
2
for
buttons + 1 for warning
/alarm
Integrated relays
2
R
elay con
tacts
c
apacity
max 30Vdc
–
1,5A
Signalings
Active call Led, call tone, Ding
-
dong ads
Installation
Ceiling, vertical paneling
Housing Material
Painted metal
Storage temperature
From
-
20°
to
+65°C
Operating temperature
From
-
20° to
+55°C
Relativ
e humidity
Up to 90% non
-
condensing
Dimensions
Diamet
er
200mm
depth
90mm, 100mm
with cables
Weight
0,850 Kg
Mounting hole
Diamet
e
r 165mm
Maximum panel thickness
Maximum thickness of the panel 30mm
W
arrant
y
2
years, possibility of extension (
O
ption)
C
ompatibility
CE, ROHS
Microphone
Call in
progress
Led
Clam
ping
springs to the
ceiling panel
Microphone
and call in
progress Led

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5. OPERATION
In stand-by and correctly configured, the system waits for incoming calls.
The device allows also the “streaming” Multicast sound diffusion. In this case the RTP audio diffused in LAN will be
played amplified by the AD633 Speaker. Differing from the announce mode on direct call, with multicast mode,
more devices can diffuse the same message at the same time, useful for general pre-recorded ads or for music
sound diffusion.
The operator who want to make an announcement on the device will make a call, from any extension of the PBX, to
the number to which the device is registered or to its IP address in the case of Peer-to-Peer connection.
It is always monitored the change status of an alarm input to which it is possible to associate a number to call and a
message to be played to the called party answer. It is possible to make common adjustment of the level output of
the speakers to better suit the acoustic characteristics of the served area.
The system can activate a relay contact for signaling to external devices.
5.1. Device connection diagrams
Analog
audio
IP PBX
Access Point
IP SIP Phone
Network PC used as a
multicast control
station with VLC
Smartphone
with
TEMA APP
Zon
e
Zon
e
2
Zon
e
3
TEMA
AD615/S
Mini Encoder
Multic
ast Audio Streaming for sound diffusion
Each AD633 is accessible from IP-PBX registered SIP phones and smartphones that can launch an
advertisement. With the help of an encoder TEMA AD6 5 it is possible to stream music on
multicast channels managed by AD633, the music is taken in analogue audio from the PC (or any
audio player) and sent to the Encoder that will redistribute on the LAN. The announcement from a
SIP call to a specific AD633 device will stop the music that will be automatically restored at the end.
AD633
Access Point
IP PBX
ZON
E
2
AD633 IP Speaker
with other passive
loudspeakers on a 00V line
made by adding an AD320 / 30
transformer
Z
ON
E
1
AD633 IP
Speaker with relay
remote control and call
button
“Push To Talk”
call button
Application with IP
-
PBX or Peer to Peer
Each IP Speaker can be reached from SIP phones, Smart-
phone and other registered terminals in the IP-PBX that can
launch ads. The integrated relay can be operated from the
SIP phone that originated the call. With a Network PC with
installed the free software TEMA "Videoconsole" it is possible
to make calls to IP speakers. If the free sofware "VLC" is also
installed, it will possible to send on Streaming Audio speakers
multicast channels, interrupted by ads as background music.
In each AD600 series speaker, it is possible to independently
adjust the audio volume reproduced via LAN thanks to the
integrated web server.
IP SIP
Phone
Network
PC
Smartph
one
with
TEMA APP

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6. OPERATING MODES
6.1. Calls to devices
Call from the PBX phones to the AD633 system allows to make announcements to the network speaker. However,
it is a normal telephone call, typically unidirectional although AD633 makes possible to hear the sound present in its
vicinity, being equipped with an internal microphone. Calling the extension number connected to the systems, they
will answer after a set time. It is also possible to have an appropriate code to protect the function from unauthorized
access. Hang up to end the announcement. Any background music will be automatically restored after some
seconds.
6.2. RELAY function
The relays are typically used to signal to any auxiliary external devices that the announce is played, automatic
activation call per call. If not used for the function described above it is available and can be controlled with an
appropriate code from the caller's telephone.
6.3. Calls generated for acquisition of external contacts for special signalings
Are the calls that the system generates on his line to alert after triggering the alarm by the equipment input contact
connected (aux devices or a button available to users in the proximity of the device). At the answer it is played to
the called a pre-recorded message. It is possible to assign a phone number or an IP address that will be called
when the input is activated. It is possible to determine the activation status of the same. It is the closure of the
external contact that triggers the sequence of signaling but it is also possible to reverse this logic, in this way the
signaling can take place after the opening of the contact (normally closed) connected to the input.
AD633 continuously monitors the status of the contact in the event of the condition of the activation stored on non-
volatile memory card. As soon as possible it will begin to call the person who will manage the situation found at the
telephone number programmed reproducing the message associated with the event. It is also possible to choose to
play on a local speaker and on any connected audio output a pre-recorded message, which will be played prior to
the call to alert the present persons in the area served by the system detected event. It is possible to define an
acquisition/silencing code of alarm signaling that the called must type to inform the device of the alarm
acknowledgment. If the called number is busy or does not reply, or in any other case where AD633 does not
receive the capture/acknowledgment code, at the end of each call attempt return in standby and prepares itself for
a new alarm notification
When the systems receive the correct acquisition/acknowledgment code related to the alarm in progress, the alter
signaling will stop and will not be carried out further alarm notification calls. In order to be ready again, it is
necessary that the condition which had triggered the previous notification returns in standby. Only at the
occurrence of a new activation of the contact condition the calls cycle with the alert notification will start again. In
practice: if a connected contact is closed and it is detected its activation, AD633 starts to make warning calls.
In the event that the person called by the system answers and successfully enter the acknowledge code, the alert
calls will be terminated. If the contact that had triggered the alert, however, remained closed (this obviously
depends by the external device that controls the contact) will NOT be triggered another warning cycle! To have new
alerts for this contact, it is necessary that come back in standby before (reopening) and then to its new next
possible closure will be detected from AD633 system with new telephone alerts.