Commend Symphony BF User manual

Symphony BF
OPERATING INSTRUCTIONS VERSION 1.4/0222
This document is an excerpt from the
Symphony BF manual version 5.2 and
covers information on basic user
configuration only
ENGLISH
OPERATING INSTRUCTIONS

Symphony BF
21.4/0222
COMMEND INTERNATIONAL GMBH
Saalachstraße 51
A-5020 Salzburg – Austria
www.commend.com
Operating instructions Symphony BF
Edition February 2022
Version 1.4/0222
Legal notice:
The manufacturer guarantees the functionality of its products as described in the data sheets and/or tech-
nical documentation. For error-free operation of the Intercom system, faultless transmission paths are
mandatory. The functionality of transmission paths, in particular of IP networks, is exclusively the respon-
sibility of the operating company of the transmission path and therefore the manufacturer is not respon-
sible in any manner for any errors and problems resulting from, or malfunctioning of the transmission
path.
It is not allowed to copy any text of this document without permission of COMMEND INTERNATIONAL
GMBH.
The technical data contained herein has been provided solely for informational purposes and is not legally
binding. Subject to change, technical or otherwise. IoIP®, OpenDuplex® and Commend® are trademarks
registered by Commend International GmbH. All other brands or product names are trademarks or regis-
tered trademarks of the respective owner and have not been specifically earmarked.
Number of pages: 21

Symphony BF
Vers. 1.4/0222 3
Content
General information 4
Introduction: Commend security for the world of SIP 5
Web interface – Login 6
Basic user – Web interface 7
User interface overview 7
Basic user – General network settings 9
Basic user – Device maintenance 13
Appendix 19
IT security 19
Device states – Overview 20
Technical Support 21

General information Symphony BF
41.4/0222
General information
CE conformity
Disposal and recycling
Handling
Use the original packaging when transporting the devices to prevent damage.
ESD precautions
Information boxes
Legend of requirements
In the left-hand margin, requirements for the respective features are displayed as follows:
This device complies with the European directives listed below by fulfilling correspond-
ing standards:
Electromagnetic compatibility (directive 2014/30/EU)
The restriction of the use of certain hazardous substances in electrical and electronic
equipment (directive 2011/65/EU)
Equipment with this symbol shall not be disposed of together with household or com-
mercial waste.
The directive 2012/19/EU on waste electrical and electronical equipment (WEEE) is appli-
cable in the European Union member states.
When installing and handling, ESD precautions must be observed.
ATTENTION
This information box addresses all necessary configuration options and actions, which will allow
error-free operation. In addition, this box warns you if a certain configuration, option or entered value
could lead to a malfunction of the application or a loss of data.
NOTE
This information box serves multiple purposes: The information included ranges from basic configu-
ration tips to additional advice and comments on occasional settings and events.
GOOD TO KNOW
This information box provides background knowledge, which helps to understand the basic principles
behind different configurations and the application itself.
Symbol Requirement
Required SIP firmware version
4.5

Symphony BF General information
1.4/0222 5
Introduction: Commend security for the world of SIP
Symphony BF stations with Intercom power
The full-duplex-capable stations of Symphony BF link the world of SIP technology with the reliability
and quality of solutions by Commend.
The stations are connected directly to the Ethernet (LAN/WAN) and via the IP network to a compatible
SIP server. Registrarless calls without a SIP server are also possible. The built-in switch with downlink
function allows direct connection of an additional IP device (e.g. an IP camera).
Besides high volume levels, the Symphony BF stations provide a large amount of further features: Pre-
recorded audio can be applied in a multi-purpose manner (e.g. as acoustic indication at line fault, as
waiting information at call initiation or a configurable background noise canceller provides a crystal
clear communication in challenging situations). Furthermore, the stations are perfectly suited for use
as door stations at entries and gateways, due to integrated relay outputs.
The robust construction of the Symphony BF stations provides full protection against water, dirt and
dust – protection class IP65. Each button can be allocated to a call number and the relevant label area
can be filled in individually.
The following Symphony BF device families are available:
IT security
Commend is focused on IT security. Not least for this reason, the Symphony BF stations provide func-
tions which enable a maximum of secure communication with other devices. For further information,
see “Appendix” on page 19.
Membrane-
protected
stations
Vandal
resistant
stations
Vandal
resistant
emergency
stations
Wallmount
stations
Hybrid modules
AFLS devices AF-hybrid
devices
IP Secure
Connector

Web interface – Login Symphony BF
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Speech connection according to SIP standard
The speech connection is established via Voice over IP (VoIP) according the SIP standard over the
connected Ethernet LAN, whether with assistance of a SIP capable PBX, of a SIP provider or via dialling
an IP address directly.
Web interface – Login
Before the basic user functionality can be used, the admin has to create credentials for the basic user.
In the basic user view of the web interface, you can find the most useful functions for working with
your Symphony BF device. For further configuration of the system, contact your administrator.
Enter the IP address of the Symphony BF device (e.g. http://192.168.1.200) in the address bar of a
web browser to open the web interface. It is recommended to use the latest version of the following
web browser:
Google Chrome
It is possible to log in to the web interface either as an admin or a basic user. It is not possible to create
additional accounts.
Login as basic user
Log in with the configured basic user credentials:
User Name: Enter the basic user name.
Password: Enter the basic user password.
Ask your administrator for your user credentials.
Click on the button LOGIN to log in to the web interface.
After a successful login, the home page of the web interface appears.
GOOD TO KNOW: What is SIP?
The network protocol SIP is only one among many protocols that are used for VoIP; the “Session Initiation
Protocol” establishes the conversation. This means, SIP is only signalling the conversation. After that, the
“Session Description Protocol” (SDP) negotiates the conversation modalities: audio codec and transmis-
sion protocol. The latter is responsible for the actual data exchange.
The actual data stream, i.e. the coded speech, is transmitted via the Real-Time Transport Protocol (RTP).
This protocol dismantles the audio data into packets and sends them over UDP – i.e. the “User Datagram
Protocol” (UDP) is responsible for the transmission of the data packets.
GOOD TO KNOW: VoIP according SIP standard – how does it work?
Each VoIP subscriber is registered automatically with the respective IP address at a server of the cor-
responding SIP provider. This provider assigns a new address to the subscriber according to the rules of
the SIP standards, in form of “sip:[e-mail]”. This address is allocated to a normal
telephone number.
If a subscriber enters this telephone number in order to establish a conversation, it will be translated into
the SIP address at first. In this manner, it is possible to identify the current IP address of the called sub-
scriber. The server sends this information back to the calling subscriber, whose hardware and software
now forwards the audio packets to the IP address of the conversation partner. In order to enable this con-
versation partner to answer, the calling subscriber also forwards his own, current IP address.
NOTE: No default basic user access
By default, basic user access is disabled. It has to be configured by the admin. To get basic user
access, contact your administrator.

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Basic user – Web interface
User interface overview
After a successful login, the home page of the user interface appears:
User interface – web interface
a Navigation bar
: Opens the login menu.
Breadcrumbs:Shows the current location in the web interface.
b Menu (Basic user view)
c Tabs
A page can be subdivided into different tabs. The blue bar shows the currently open tab. Tabs can con-
tain various cards.
d Cards
Cards can contain various section and web interface functions. Cards can be expandable.
e Sections
Sections can contain various subsections and web interface elements. Sections can be expandable.
f Subsections
Subsections can contain various web interface elements.
A
B
C
D
E
F
G

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g General icons
General icons used in the web interface for various features:
Add Button to add elements.
Attention Indicates warning messages.Contempt of the warning may lead to limited
system functionality.
Arrow collapse Button to collapse web interface elements (e.g. accordion elements).
Arrow expand Button to expand web interface elements (e.g. accordion elements or drop-
down lists).
Call Button to establish a call.
Cancel / close Button to cancel or close web interface elements.
Contacts Represents phonebook contacts.
Delete Button to delete web interface elements.
Download Button to download files from the device.
Duplicate Button to duplicate files or web interface elements.
Edit Button to open the configuration dialogue.
Error feedback Button/Flyover to show further information about web interface elements.
Upload Button to upload files to the device.
Info Indicates further information.
Saved Indicates successful web interface changes.
Sequences Represents logic sequences.
ATTENTION: Save settings
Save the settings first, otherwise all unsaved settings will be lost.
ATTENTION: Reboot needed after finishing configuration sessions
Every configuration session requires a reboot. Missed reboots interfere with the operational mode of the
device and can cause performance issues. Make sure to reboot the device after finishing your configura-
tions.

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Basic user – General network settings
SIP Series > General Settings
Network
DHCP
Status: Activate this toggle button to automatically request the required IP settings (subnet mask
and IPv4 addresses for the Symphony BF device, gateway and DNS) from a DHCP server after a re-
boot. If the toggle button is activated and an a DHCP server is reachable, the settings in the fields IP
Address, Subnet Mask, Gateway and DNS have no effect on the running configuration of the
Symphony BF device.
NOTE: IPv6
IPv6 addresses are supported as of SIP firmware version 3.8 or higher. By default, IPv6 is enabled and
global IPv6 addresses are assigned by auto configuration using the “neighbour discovery protocol”
according to RFC 4861.
NOTE: DHCPv6 Fully Qualified Domain Name (FQDN)
The DHCPv6 Fully Qualified Domain Name (FQDN) according to RFC 4704 is not supported.
GOOD TO KNOW:
If web interface settings are changed, the box that appears offers the possibility to save changes. Click
on the button Save to apply changes to the running configuration. This takes a couple of seconds.
ATTENTION: Network instabilities caused by incorrect network settings
Incorrect IP settings may lead to network instabilities! Changes of the following settings may only be ap-
plied by the system administrator!
ATTENTION:
If DHCP is disabled, the automatic provisioning feature cannot be used. In combination with a static
IPv4 device, only manual provisioning (TFTP server has to be configured manually) can be used.
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Remember DHCP Settings: Activate this checkbox to save the previously obtained DHCP settings.
I.e. if the DHCP server is not reachable at the next boot up, then this saved DHCP settings will be
used for the Symphony BF device.
SIP Settings
In this section, settings required for the connection to a SIP server can be configured.
Display Name: Enter an individual caller description for the Symphony BF device. If the field Dis-
play Name is blank, the system uses the default value of the device.
Status: Activate this toggle button to register the Symphony BF device with the appropriate user
and password at the SIP server that is entered in the field Proxy (see below).
User ID: In this field, enter the call number of the Symphony BF device for SIP registration (i.e. the
call number of the corresponding SIP account on the SIP server).
Authentication ID: In this field, enter the authentication ID of the SIP account. This ID is only nec-
essary for certain SIP servers.
Password: In this field, the corresponding password, which is configured at the SIP server, can be
entered for the authentication at the SIP server.
Proxy: In this field, the IP address or FQDN (fully qualified domain name) of the appropriate SIP
server can be entered, to which a connection shall be established (i.e. at which the Symphony BF
device shall be registered).
GOOD TO KNOW: Registrarless calls
By default, the field User ID holds the value of the first SIP server as well as for registrarless calls.
Your administrator can configure the user ID for registrarless call to another ID than the one config-
ured in the field User ID. Contact your administrator if you want to make sure the user ID configured
in the basic user interface is used for registrarless calls. If you want to use registrarless mode only,
deactivate the toggle button Status.
NOTE:
Usage of special characters (e.g. §,>,<, etc.) may be limited. The length of is restricted to 200 digits.
NOTE:
In case of operation without a server, this toggle button has to be disabled.
NOTE:
For some SIP servers, it may be required to additionally enter the domain: “userID@domain”.
NOTE:
If an IP address is entered in the field Proxy, the port number is set to “5060” by default. To change
it, add the desired port number to the IP address (e.g. “10.10.1.101:5070”).
If the FQDN is entered in the field Proxy, the port number is determined by SRV records. If SRV re-
cords are not supported by the domain, the correct port number for SIP registration has to be added
to the FQDN (e.g. “example.com:5070”). In this case, only A queries are performed.
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Symphony BF Basic user – Web interface
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Call Settings
In this section, call settings can be configured.
Cancel Call: In this drop-down list, the method for cancelling calls and conversations can be select-
ed. The following methods are available:
Disabled: A call or a conversation cannot be cancelled at the Symphony BF device (i.e. only at
the respective remote station). If a Call time limit (s) is configured, the conversation is cancelled
automatically after this time has elapsed.
Emergency Button: Press the emergency button of the Symphony BF station to cancel the call
or conversation.
Default Button: Press the default button of the Symphony BF station to cancel the call or con-
versation.
Button <x>: Press the selected button of the Symphony BF station to cancel the call or conver-
sation.
Button Enter: Press the enter button of the Symphony BF station to cancel the call or conversa-
tion.
Button Menu: Press the menu button of the Symphony BF station to cancel the call or conversa-
tion.
Any Input: Any detected input state change will cancel the call or conversation.
Any Button: Any button of the Symphony BF station will cancel the call or conversation (if con-
nected, including
WSDD 53V/WSDD 59V module buttons).
Any Input or Button: Any button or any detected input state change will cancel the call or con-
versation.
Input Button <x> rising edge: Cancels the call or conversation when the normally open contact
is being closed.
Input Button <x> falling edge: Cancels the call or conversation when the normally open con-
tact is being opened again.
Module on Input <x> Button <x>: The selected WSDD 53 V/WSDD 59V module button cancels
the call or conversation.
Answer call: In this drop-down list, the method to accept an incoming call can be selected. The fol-
lowing methods are available:
Auto Answer: The incoming call is accepted automatically by the Symphony BF device after the
configured Auto answer delay (s) time has elapsed. If a Call time limit (s) is configured, the
conversation is cancelled automatically after this time has elapsed.
Emergency Button: Press the emergency button of the Symphony BF station to cancel the call.
NOTE:
The number and the labelling of the buttons in this drop-down list depend on the station version
used and the number of configured direct dialling modules in use.
NOTE: Input has to be activated and configured as default input
To select an input or a direct dialling module button in this drop-down list, the respective option
has to be activated in the tab input.
NOTE: Activate input and configure it as a 3-button or 9-button module
To select an input or a direct dialling module button in this drop-down list, the respective option
has to be activated in the tab input.
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Default Button: Press the default button of the Symphony BF station to cancel the call.
Button <x>: Press the selected button of the Symphony BF station to cancel the call.
Button Enter: Press the enter button of the Symphony BF station to cancel the call.
Button Menu: Press the menu button of the Symphony BF station to cancel the call.
Any Input: Any detected input state change will cancel the call.
Any Button: Any button of the Symphony BF station will cancel the call (if connected, including
WSDD 53V/WSDD 59V module buttons).
Any Input or Button: Any button or any detected input state change will cancel the call.
Input Button <x> rising edge: Cancels the call when the normally open contact is being closed.
Input Button <x> falling edge: Cancels the call when the normally open contact is being
opened.
Module on Input <x> Button <x>: The selected WSDD 53 V or WSDD 59V module button can-
cels the call.
Auto answer Delay (s): In this field, the delay (in seconds) for the auto answer function (0 = no
delay) can be configured. Select the entry “Auto Answer” in the drop-down list Answer call to en-
able this field (see above). Default: “5”
NOTE:
The number and the labelling of the buttons in this drop-down list depend on the station version
used and the number of configured direct dialling modules in use. For further information, contact
your system administrator.
NOTE: Input has to be activated and configured as standard input
To select an input or a direct dialling module button in this drop-down list, the respective option
has to be activated in the tab input.
NOTE: Input has to be activated & configured as 3-button or 9-button module
To select an input or a direct dialling module button in this drop-down list, the respective option
has to be activated in the tab input.
NOTE:
If an Auto answer delay (s) of “0” is configured, no incoming call tone is played back.
If the Auto answer delay (s) is changed from “0“ to another value, the factory default incoming
call tone is restored.
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Basic user – Device maintenance
SIP Series > Device Settings
System
Reboot device :
Click on the button Reboot device and confirm the pop-up notice to reboot the device.
Update device :
Click on the button Update device to open the update dialogue.
User Management
Login: Enter the user name for the web interface login and click Save in the dialogue that appears.
Old Password: Enter the default or current password and click Save in the dialogue that appears.
New Password: Enter the new password and click Save in the dialogue that appears.
Confirm Password: Confirm the new password and click Save in the dialogue that appears.
Audio Settings
ATTENTION:
The dialogue for confirming the start of the download process is shown 30 seconds after the update
button has been pressed. During the update, the reboot button is disabled to avoid an unintended
reboot of the device.
During a firmware update, the power supply of the Symphony BF device must not be disconnected
under any circumstances – THIS CAN DAMAGE THE STATION!
In case of an update from firmware 1.x to 2.0 or higher, specific settings will not be saved (e.g. button
configuration). Therefore, it is recommended to carry out a factory reset after updating to firmware
2.0 or higher. Contact your system administrator.
NOTE: Clear web browser cache after update or downgrade
A firmware update or a downgrade to a previous version can cause problems in the web interface due
to incorrect JavaScript files. Clear the cache of your web browser.
ATTENTION:
For changing the default values of the microphone sensitivity or volume level (in particular for
conversations between two SIP stations), in combination with changes of the values for the noise and
echo suppression, contact your system administrator.
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Mic Input Sensitivity: Shift the slider to change the sensitivity of the (connected) microphone of
the Symphony BF device. Changes are applied immediately during a running conversation. de-
fault: “8 (+0dB)”
Audio Output Volume: Shift the slider to change the volume level of the (connected) loudspeaker
of the Symphony BF device. Changes are applied immediately during a running conversation.
default: “8 (+0dB)”
mute: “-1” (-∞dB)
International Tone Plans: In this drop-down list, the respective tone plan specification for several
countries can be selected.
In / Out
In
Internal Microphone: Select this radio button to feed-in audio via the internal microphone. I.e. the
terminals “EM+” and “EM–” for the microphone of the handset/headset are deactivated).
Handset Microphone (EM):Select this radio button to feed-in audio via the terminals “EM+” and
“EM–”, i.e. via the handset/headset (the internal microphone is deactivated).
Out
Internal Loudspeaker: Activate this checkbox to put out the audio signal via the internal loud-
speaker.
Handset Loudspeaker (EP): Activate this checkbox to put out the audio signal via the terminals
“EP+” and “EP–”, i.e. via the loudspeaker of the handset/headset.
Pre-Recorded Audio
In this section, pre-recorded audio files can be loaded into the memory of the Symphony BF device.
See the following requirements:
NOTE:
The configured level defines the volume of the pre-recorded audio (for an incoming call) as well as
the volume of the different signal tones.
Audio format Memory File size
Accepted WAV:
Min. 8 kHz, 8 or 16 bit, mono or stereo
Max. 60 seconds in
total 2 MB per file
Recommended WAV:
16 kHz, 16 bit, mono
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Symphony BF Basic user – Web interface
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Pre-recorded audio can be used for the following states:
Outgoing Call: Outgoing call from the Symphony BF device. The audio file can be configured e.g.
as calm down message at call initiation or as individual call tone for the call initiator.
Incoming Call: Incoming call to Symphony BF device. The audio file can be configured as individ-
ual calling signal (and/or pre-recorded audio).
Error: Error in establishing a call (e.g. call destination cannot be reached).
Location Message: The called SIP device (e.g. mobile phone) receives a location message as in-
formation, from which SIP device the call is coming from.
Sequence Audio: The pre-recorded audio can be used when the action “Play” and/or the action
“Multicast” is carried out in a sequence. It is possible to upload several pre-recorded audio files.
Add pre-recorded audio
Import pre-recorded audio: In the desired line, click on the button Add file, select the desired
audio file, and click on the button Upload.
Export pre-recorded audio: Click on the export button to save the audio file (OGG format) on
the connected computer.
Indication of the file length
If the desired audio files are loaded into the memory of the Symphony BF device, the total length of all
loaded files will be displayed in the loading bar:
ATTENTION:
One single WAV file may not exceed the file size of 2 MB!
ATTENTION: Double usage of device status
Parallel use of the following device state triggers: “Outgoing Call” / “Incoming Call” and pre-
recorded audio states: “Outgoing Call” / “Incoming Call” will cause sequences to overlap, leading
to a connection error.
NOTE: Audio files
Uploading, recording and saving the audio file can take some seconds:
Loading time = 2 x file length (e.g. file with 10 seconds: loading time = 2 x 10 = 20 seconds)
All audio files together must not exceed the max. length of 60 seconds (see page 14).
Audio files names have to be entered including the file ending (e.g. <file_name>.wav).
Exported WAV files have to be saved in OGG format.
Use the original (e.g. .WAV) files for reimport. Reusage of exported and converted OGG files may
cause quality loss.
NOTE: Loading several audio files into memory
Load several pre-recorded audio files into the memory of the station by adding and uploading them
one by one. Complete the following steps for every audio file before moving on to the next audio file:
1. Click on the button Add file.
2. Select the audio file.
3. Click on the button Upload before adding another audio file.
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Erase pre-recorded audio files from memory
Click on the button Use default of the respective pre-recorded audio file to erase this file from the
memory (the respective state will then be reset to the default settings).
LED Configuration
State
Here the settings of the RGB LED can be configured for the following call states:
Red, Green and Blue: In these drop-down lists, the following settings regarding to the LED behav-
iour can be selected for the call states listed above:
Nothing: No action is carried out. Current status of the LED is maintained.
On: LED is permanently on.
Off: LED is off.
Flashing:Fast: LED blinks in a fast rhythm.
Flashing:Slow: LED blinks in a slow rhythm.
NOTES:
Default setting for the states “Incoming Call”, “Outgoing Call” and “Error” means that the factory
default tones will be used.
Default setting for the state “Location Message” means that no signal tones will be put out.
Default setting for the state “Sequence Audio” used for a multicast send action means that the de-
fault pregong will be used. Do not erase the file if it is configured as part of a sequence.
Default setting for the state “Sequence Audio” used for a play action means that the error tone will
be used. Do not erase the file if it is configured as part of a sequence.
Call state Description
Incoming Call Incoming call from the Symphony BF device
Outgoing call Outgoing call from the Symphony BF device
Call in Progress Active conversation between two SIP stations
Standby Idle state (inactivity) of the Symphony BF device 1)
Error Error in connection to SIP server, signalling or other problems
Relay 1 / 2 State of the relay
1) Idle state = registered at SIP server or in case of registrarless operation: “ready for operation”
NOTE:
If the same setting (e.g. “Flashing:Fast”) is configured for two or three colours, the LED will blink
in mixed colour.
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Relay states
Relay 1, Relay 2, EB2E2A Relay 1 and EB2E2A Relay 2: In these drop-down lists, the following
settings regarding the LED behaviour can be selected for the relays:
Nothing: The LED setting remains as configured in section Call states.
Combine (Relay active): LED is on while relay is switched on.
Inverse (Relay inactive): LED is on when relay is switched off.
Outputs
Status: Indication of the current relay state.
Manual Actions: Click on the following buttons to trigger different relay actions directly from the
web interface:
Nothing: No action is carried out. The current status of the relay is maintained.
On: Close relay output (activate).
Off: Open relay output (deactivate).
Flashing: Switch relay output to blinking (switch on and off in rhythm of one second).
Toggle: Invert current state of the relay output (switch on/off).
Door Opener: Relay output is closed for a configurable time (see below).
DTMF Button for On,Off,Flashing,Toggle and Door opener: In these drop-down lists, the de-
sired DTMF button (allowed characters: 0–9, *, #) of a SIP telephone can be selected to control the
relay outputs. Control of the relays is carried out via DTMF after dialling during the conversation.
GOOD TO KNOW:
The drop-down lists EB2E2A Relay 1 and EB2E2A Relay 2 are only available with a connected
option board EB2E2A.
GOOD TO KNOW:
Click on the button Save (at the bottom right) to apply changes in the running configuration.

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18 1.4/0222
Door Opener Timer (s): In this field, the time can be changed (in seconds) how long the relay shall
stay active after pressing the door opener button. default: “2”
In the drop-down lists, the following relay modes can be selected for the call states listed above:
Nothing: Deactivate attendant contact (relay not used).
On: Close relay output (activate).
Off: Open relay output (deactivate).
Flashing: Switch relay output to blinking (switch on and off in rhythm of one second).
Door Opener: Relay output is closed for a configurable time (see page 18).
EB2E2A Relay 1 and EB2E2A Relay 2
If an option board EB2E2A is connected to the expansion jack of the station, two additional relay out-
puts are available.
NOTE:
If the current state of the attendant contact changes while the door opener timer is active, the relay
will be triggered immediately (i.e. before the configured door opener timer has expired).
NOTE:
The configuration is the same as for the relays of the Symphony BF device (see page 17).
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Appendix
IT security
As a provider of security-specific solutions, Commend has a tradition of passionate commitment to se-
curity, both physical and digital. We are acutely aware of what is at stake, as users depend – and in
extreme cases even stake their lives – on the reliability of our systems. Where digital security is con-
cerned, we make every effort to ensure cyber security best practices in the design, production and rig-
orous testing of every component to rule out exploitable vulnerabilities as much as possible.
The following sections will guide you through cyber security related configuration steps.
Password management
Using a secure and unique password is the most fundamental means of providing basic protection
against unauthorised access. For this reason, it is essential to change the default password for any de-
vice in the Intercom system. Make sure you are using a strong password according to your internal IT
security regulations. For a password to be as secure as possible, the following applies: length over
complexity.
A password must:
consist of a minimum of 12 characters (max. 64 characters)
include the following allowed characters: [SPACE] _ a b c d e f g h i j k l m n o p q r s t u v w x y z A
B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 ^ $ ? . * + -& [ { ( ) } ] | \ / ! # % :
; , = @ ~
include a mix of numbers, symbols (if applicable), uppercase and lowercase letters
not include user names or dictionary words
only be used once to prevent access to other devices
Another way to ensure a maximum of security is to change and renew the password regularly. This is
especially important for user passwords that are used on a daily basis. Furthermore, it is recommend-
ed to use a password manager software to securely store passwords.
For configuration details, follow the links below.
Password-protected access
Change basic user account data for the web interface, see ”User Management” on page 13
User account for the SIP server, see ”SIP Settings” on page 10
Prevention from brute-force attack by locking the login to the web interface for 180 seconds after the
third failed attempt with invalid login data

Appendix Symphony BF
20 1.4/0222
Device states – Overview
Device state depending on the operation state of the Symphony BF device:
Idle: If neither a call is triggered with the device nor another device tries to establish a call to the
Symphony BF device and no error has occurred, the Symphony BF device is in the device state
“Idle”.
Incoming Call: If a call is triggered by another device, the Symphony BF device switches to the de-
vice state “Incoming Call”.
Outgoing Call: If a call is triggered by the Symphony BF device (e.g. by pressing a button), the Sym-
phony BF device switches to the device state “Outgoing Call”.
In Call: If an incoming call is accepted via the Symphony BF device or an outgoing call is accepted
by another device, the Symphony BF device switches to the device state “In Call”. As soon as a call
is terminated (by the Symphony BF device or the remote station), the Symphony BF device switches
back to the device state “Idle”.
Error: In case of an error at the Symphony BF device (e.g. when disconnecting the Symphony BF
device from a connected SIP server), the Symphony BF device switches to the device state “Error”
and remains in that device state until the error has been resolved or the configuration has been
changed.
The Symphony BF device can never be in two device states at the same time (see also the following
illustration):
GOOD TO KNOW: What can cause device state “Error”?
The following system states can cause device state “Error”:
If the Symphony BF device is in operation but cannot register at the SIP server.
If the Symphony BF device is in operation, connected with the SIP server and the TCP port check is
activated but the Symphony BF device is unable to register at the SIP server and the TCP port check
failed on all configured SIP servers.
If the Symphony BF device is in operation and connected with the SIP server and LS/MIC surveillance
fails and the option "Error on failure" is set in the LS/MIC surveillance configuration.
Note: If the Symphony BF device is in operation but is neither connected to the SIP server nor is TCP port
check activated, the device will not change into device state “Error”.
Dependencies of device states
Idle
Error
Call initiated
Error detected
Outgoing call Call accepted
Call declined
In call
End call
Incoming call