ENA Amplifier Configuration (SIP)

ENA Amplifiers in SIP mode

This article describes the configuration settings available via the web interface of the ENA IP Network Amplifier in SIP mode.

Notes

Some menu options are available only when Advanced Configuration mode is enabled. Screen shots may differ somewhat depending on firmware version and ENA amplifier model

Main

Information

• Log In to the amplifier
• The Information page will now be displayed, showing the amplifier configuration and status.

The Information page

To find the IP address of the amplifier, use the Intercom Management Tool, IMT. On ENA amplifiers with a front display one can use the Menu Selection Knob, and navigate to Information > Network.

Main Settings

• Click Station Main > Main Settings to access the page for configuring Station Mode and IP parameters.

The Main Settings page

Mode: Select the SIP radio-button.

Preferred Internet Protocol: Select either IPV4 or IPV6. (Not available in the ENA2060 amplifier).

IP Settings:

• DHCP – Select this option if the IP station shall receive IP Settings from a DHCP server.
• Static IP – Select this option if the IP station shall use a static IP address. Enter values for:

- IP-address

- Subnet-mask

- Gateway

- DNS Server 1 (option for network administration)

- DNS Server 2 (option for network administration)

- Hostname (option for network administration)

• Disable Reset to Factory default settings using frontboard and I/O: If enabled, factory reset will only be possible from the web interface. This is disabled by default.

• Enable RSTP: RSTP is only required when using redundant networking (Not available in the ENA2060 amplifier).

Click Save followed by Apply to apply the new configuration settings.

Time Settings (Available in the ENA2060 amplifier only).

• Enable Network Time Protocol, set the IP address of the NTP Server, Select Region and Zone

Recovery

The Recovery page

• Full reboot: Perform a full Linux reboot. No configuration is lost
• Partial reboot: Perform a restart of the intercom application. No configuration is lost
• Factory reset: Set all parameters to Factory Default values. The amplifier will get static IP Address 169.254.1.100.
• Factory reset with DHCP: Set all parameters to Factory Default values. The amplifier will get IP Address from DHCP server. If no DHCP server in the network, it will get a random 169.254.x.x IP address.

SIP Configuration

Account/Call

Select SIP Configuration -> Account/Call to access the page for configuring the SIP Account Settings.

The Account/Call Settings page

Amplifier Settings

• Name: Enter a name for the amplifier.
• Transport: Transport protocol to use for SIP. Choose between UDP (default), TCP or TLS.

Channel 1/2 Account Settings

• Name: Enter a name that will be shown on the display at the remote party.
• Number (SIP ID): This is the identification of the station in the SIP domain, i.e. the phone number for the station. This parameter is mandatory. Enter the SIP ID in integers according to the SIP account on the SIP domain server.
• Server Domain (SIP): The IP address of the SIP Server. This can be either an IP address in regular dot notation or a hostname.
• Backup Domain (SIP): This is the secondary (or fallback) domain. If the station loses connection to the primary SIP domain, it will switch over to the secondary one. This can be either an IP address in regular dot notation or hostname.
• Backup Domain 2 (SIP): This is the tertiary SIP domain used as backup in case the primary and secondary domains fail. This can be either an IP address in regular dot notation or hostname.
• Authentication User Name: This is the authentication user name used to register the station to the SIP server. This is required only if the SIP server requires authentication and is normally the same as the SIP ID.
• Authentication Password: The authentication user password used to register the station to the SIP server. This is required only if the SIP server requires authentication
• Register Interval: This parameter specifies how often the station will register, and reregister in the SIP domain. This parameter will affect the time it takes to detect that a connection to a SIP domain is lost. Enter the values in number of seconds from 60 to 999999. The default interval is 600 seconds.
• Outbound Proxy [optional]: Enter the IP address of the outbound proxy server in regular dot notation, e.g. 10.5.2.100, or as a hostname.
• Outbound Backup Proxy [optional]: Enter the IP address of the outbound proxy server in regular dot notation, e.g. 10.5.2.100, or as a hostname.
• Outbound Proxy 2 [optional]: Enter the IP address of the outbound proxy server in regular dot notation, e.g. 10.5.2.100, or as a hostname.

Input Channel Account Settings

• Select Input Channel: Select between Line Input or Microphone Input.
• Name: Enter a name that will be shown on the display at the remote party.
• Number (SIP ID): This is the identification of the station in the SIP domain, i.e. the phone number for the station. This parameter is mandatory. Enter the SIP ID in integers according to the SIP account on the SIP domain server.
• Server Domain (SIP): The IP address of the SIP Server. This can be either an IP address in regular dot notation or a hostname.
• Backup Domain (SIP): This is the secondary (or fallback) domain. If the station loses connection to the primary SIP domain, it will switch over to the secondary one. This can be either an IP address in regular dot notation or hostname.
• Backup Domain 2 (SIP): This is the tertiary SIP domain used as backup in case the primary and secondary domains fail. This can be either an IP address in regular dot notation or hostname.
• Authentication User Name: This is the authentication user name used to register the station to the SIP server. This is required only if the SIP server requires authentication and is normally the same as the SIP ID.
• Authentication Password: The authentication user password used to register the station to the SIP server. This is required only if the SIP server requires authentication
• Register Interval: This parameter specifies how often the station will register, and reregister in the SIP domain. This parameter will affect the time it takes to detect that a connection to a SIP domain is lost. Enter the values in number of seconds from 60 to 999999. The default interval is 600 seconds.
• Outbound Proxy [optional]: Enter the IP address of the outbound proxy server in regular dot notation, e.g. 10.5.2.100, or as a hostname.
• Outbound Backup Proxy [optional]: Enter the IP address of the outbound proxy server in regular dot notation, e.g. 10.5.2.100, or as a hostname.
• Outbound Proxy 2 [optional]: Enter the IP address of the outbound proxy server in regular dot notation, e.g. 10.5.2.100, or as a hostname.

Call Settings

• Max Trying Timeout: Default setting 15.
• Max Ringing Timeout: Default setting 120.
• Max Queued Timeout: Default setting 30.
• Max Conversation Timeout: Default setting 3600.
• RTP Timeout: Default setting 3600.
• Codec g711a: Default setting Low.
• Codec g711u: Default setting Low.
• Codec g722: Default setting High.
• Codec g729: Default setting Medium.

DAVC

The Distributed Automatic Volume Control (DAVC) is an algorithm which is using one or more microphones ("AVC Source") to measure the ambient audio/noise level, and data from the microphones are used to adjust the loudspeaker output level of the ENA amplifier ("AVC Receiver") according to the ambient audio level. For details, see Distributed Automatic Volume Control (DAVC) (SIP).

This menu option is available when the Advanced Configuration mode is enabled.

GPI Settings

An input can be used to initiate and tear down a call between a user and an amplifier channel.

The GPI Settings page

GPIx On:

• Idle: Call Destination
• Call: Hangup Call

GPIx Off:

• Idle: Call Destination
• Call: Hangup Call

Inputs can also be used to report faults from external system/devices via SNMP Trap. See External_Custom_Faults

Relay/Output Settings

Details are described in this article: GPO Output configuration (ENA amplifier in SIP mode)

Multicast Paging

Multicast Paging enables the ENA amplifier to receive RTP multicast streaming from e.g. 3rd party iPBX (e.g. Asterisk). Up to 10 different Multicast paging groups can be defined.

For details, see Multicast Paging (Edge/SIP)

This menu option is available when the Advanced Configuration mode is enabled.

Station Administration

Change Password

Go to Station Administration -> Change Password

The Change Password page

Type in the old password and the new password, then click save.

Device GUI PIN
There is also an option to set a pin code for the Device GUI. A Read only-user and a Full Access-user can be enabled, or changing settings from the GUI can be disabled entirely.
The amplifier arrives with no pin code active by default.

The GUI PIN option is applicable only to older ENA2200/2400 models with front display

Manual Upgrade

The software of the amplifier can be upgraded via the web interface. see Turbine_Software_Upgrade for details.

Backup and Restore

From the web interface of the amplifier it is possible to backup and restore the configuration data. See Backup and Restore for more information.

This menu option is available when the Advanced Configuration mode is enabled.

Logging

Logs can be useful for debugging and troubleshooting purposes. See Logging - IP Stations on how to enable and collect logs.

Advanced App. Config

This page is used for advanced troubleshooting mainly by developers.

The Advanced App. Config page

This menu option is available when the Advanced Configuration mode is enabled.

Advanced SIP

This menu option is available when the Advanced Configuration mode is enabled.

Updates

The ENA Amplifier can be configured to automatically poll configuration from a TFTP server. The IP address of this TFTP server can be obtained using DHCP procedures or be manually configured. See TFTP Provisioning for more information.

SIP Test

The SIP Test page

• Call: Insert a directory number to establish a call to. Call is initiated from the Channel 1, Channel 2 or Input Line SIP account when pressing the "Call" button.
• Play Media: Enter a filename, press Play File to play the file. For valid filenames, see below.
• Stream Audio: Select a Remote Hostname, Codec and port, press Start Stream to start streaming audio.
• GPI State: Shows the current state of the GPI.

Play Media

This feature is available from firmware version 8.2.3.2

Use this feature to play audio files directly from the amplifier to Channel 1 or 2, or to the Input Line. This can be useful when commissioning the PA system. One can play e.g. the ITU speech simulation file or Pink Noise, and adjust the master volume to appropriate level without the need of setting up calls.

You need to type in the filename as per tables below (the audio files come with the amplifier, no need to upload).

• Check Repeat to play the file in loop
• To stop playing, delete the file name and press "Play File".

Play "Pink Noise" in channel 2

Test signals:

Filename	Description
01_ITUVoice10Sec.wav	Speech simulation file defined by ITU. Useful as test signal when adjusting Master volume of the amplifier
02_whitenoise_16k.wav	White noise
03_pinknoise_16k.wav	Pink noise. Useful as test signal when adjusting Master volume of the amplifier
04_IMD_Test_16k.wav	Description missing
05_adeleshort200Hz.wav	A short clip with Adele
06_sinus0dB.wav	A 1kHz sinus signal
07_sweep_16k.wav	A frequency sweep signal

Tick Tones: A tick tone can be sent to selected channel/zone. This function can be used to audibly verify that the system works properly. The tick tone is a “clicking sound”.

Filename	Description
ticktone1.wav	Tick tone for testing speaker line
ticktone1A.wav	Tick tone for testing speaker line
ticktone1B.wav	Tick tone for testing speaker line

Audio clips:

Filename	Description
twostage_dialing_prompt_code.wav	"Please enter the pin code"
twostage_dialing_prompt_directoryid.wav	"Please enter the phone number"
twostage_ringing.wav	"Your call has been forwarded, please hold the line"

Others:

Filename	Description
dingdong.wav	A chime signal
readipaddress.wav	The amplifier will play its IP address

Whitelist

Currently (ver. 8.1.3.1) not in use by ENA amplifiers.

The Whitelist page

Specific Settings

These settings are made for specific projects, and should be left disabled.

The Specific Settings page in an ENA2060 amplifier

Advanced Network

This menu option is available when the Advanced Configuration mode is enabled.

SNMP

See SNMP in IP Stations for more information.

Firewall

All ENA amplifiers have an embedded firewall. See Firewall for details.

The Firewall Settings page

Amplifier Settings

Status

The Status page

• Faults
  • Display currently active faults on amplifier
  • The page is automatically refreshed each 10 seconds (can be manually refreshed)
  • Only faults that are active for enabled monitoring options are visible
  • If the page is empty there are no reported faults
• Temperature measurements: Display different temperature levels
• Voltage measurements: Display measured voltage levels for diagnostics
• Fan speed (RPM): Display the fan speed for the two fans inside the amplifier (Not applicable to the ENA2060 amplifier)
• Let status: If there are Let configured for the amplifier the status will be displayed here

Line Control

Line Control - ENA2x00-AC2

The Line Control page in ENA2x00-AC2

Amplifier Lines configuration:

• Lines Enabled: Enable/Disable Amplifier outgoing lines.
• Line Voltage: Shows urrently configured line voltage.
• SLM Software version: Shows the software version of SLM processor
• One Channel mode: One channel mode for this amplifier.

Voltage options:

• Line Voltage choose speaker line voltage - 70V or 100V options

Channel 1/Channel 2 options:

• Tick Tone: A tick tone can be sent to the channel. This function can be used to audibly verify that the system works properly. The tick tone is a “clicking sound”.
• Master Volume in dB. Sets the channel volume.
• Monitor Mode can be Off, Manual for manual monitor triggering and Continuous for continuous monitoring
  • To get access to monitoring configuration options, either type of monitoring has to be enabled
• Line Monitoring enables Speaker Line Monitoring (SLM)
• LET Monitoring enables Line End Transponder monitoring
• Route Line In to ch Route Line In to Channel (Bypass). Always off means that routing is always disabled. No IP Audio/Reg will route audio if no sound is being played from IP network or there is no server connection or device is not registered to server. Not registered will route audio if there is no server connection or device is not registered to server. Always on will always route audio. Volume can be adjusted by a pot-meter at the rear side of the amplifier. Volume can not be controlled from web.
  • ** See more details at ENA amplifier in Bypass Mode

Line In options:

• Gain: Select Audio Input Gain.
• Pilot Tone Sensing Enable/Disable Line In Pilot Tone Sensing

Line Monitoring options

Line monitoring options become available when Monitoring Mode is set to Continuous or Manual, and Line Monitoring is enabled

Line Monitoring options

• • Detailed Line Fault Reporting will enable separate reporting of open and shorted, not available on all speaker line configurations
  • Load Change monitor line load change
  • Ground Fault monitor line ground fault
• Manual Monitoring Options (only available when Monitor Mode is Manual)
  • Remove LET Faults when enabled LET faults will be removed when manual monitoring is finished
  • Remove SLM Faults when enabled SLM faults will be removed when manual monitoring is finished
• Fault Report Options
  • Report Faults Severity selects how are line faults reported on device GUI as critical (red exclamation sign) or warnings (yellow exclamation sign)
• Suspend Monitoring Options (only available when Monitor Mode is Continuous)
  • When Suspended Monitoring is enabled, the amplifier will suspend the monitoring signal when there is a call on the channel to avoid false alerts and maintain audio quality.
• LET (only available when LET Monitoring is enabled)
  • 10 LETs per channel can be added
  • Failed Counter How many times LET should fail before error is reported
• Calibration Info (only available when channel monitoring is enabled, configured and saved)
  • Calibrate command (35 seconds timeout) will attempt channel calibration
  • Reset Calibration (3 seconds timeout) will reset channel calibration
  • Measure (60 second timeout, only available if Monitor Mode is Manual and channel is successfully calibrated) will manual monitor channel for 60 seconds and report any faults detected

Line Control - ENA2060

The Line Control page in ENA2060

Channel 1/Channel 2 options:

• Channel Enabled: Enable/Disable Amplifier channel.
• Master Volume in dB. Sets the channel volume.
• Monitor Mode: Set monitoring mode, Continuous is monitoring always active, Manual will monitor only when manually triggered. Line Monitoring must be enabled as well.
• Line Monitoring enables Speaker Line Monitoring (SLM). See ENA2060 Amplifier - Speaker Line Monitoring

Line In options:

• Line In Type: Select "Microphone" (pin 21/22 on the multi-connector) or "Line In" (pin 16/17 on the multi-connector) as Audio Input.
• Impedance: Select Audio Input Impedance. Default is High.
• Gain: Select Audio Input Gain.

Testing

Verify the Fault Relay and LEDs.

The Testing page

• LEDs: The front LEDs of the ENA2x00-AC2 amplifier will flash for a few seconds
• Fault Relay: The fault relay of the ENA2x00-AC2 amplifier will be triggered for a few seconds

The LED and Relay test is not supported in the ENA2060 amplifier.

IO Monitoring

The ENA amplifier offers monitoring of the outputs and the inputs.

RCOs

The RCOs monitoring alerts when the voltage on the contacts of an output is outside the configured legal value.

• Limit Low OK - If the RCO triggers and the voltage is below this value, it is reported as "Shorted".
• Limit High Not OK - If the RCO is not above this voltage when output is high, it is reported as an "Overload".

The RCOs can be tested from this page. They can be set and cleared. Remember to set them back to System before ending the test.

IO Monitoring > RCOs

The RCO monitoring is not available in the ENA2060 amplifier.

RCIs

The inputs can be used in a conventional way (On/Off), or they can be monitored for Open/Short. A resistor network is needed to enable monitoring of the input.

IO Monitoring > RCIs

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• Monitor RCI enables monitoring of RCI.
• Not Pressed - Lower voltage threshold for the RCI to be considered not activated. No need to change this value if using the recommended resistor values.

The RCI monitoring is not available in the ENA2060 amplifier.

External Custom Faults

A fault signal (closed contact) from an external system/device can be connected to one of the inputs of the amplifier. The amplifier can be configured to report on SNMP trap when the input is triggered. One can add a customized text to be included in the report.

IO Monitoring > External Custom Faults

• Enabled: Enable/Disable the input as "external custom fault trigger". When activated an SNMP Trap will be generated. Input actions will still be acted upon if also configured in the GPI Settings.
• Level: Fault priority level
• Description: Fault description. The text will be present in the SNMP trap.
• Activation: Activation method. Toggle will activate fault on contact close, on next contact close fault will be cleared. On/Off will keep fault active while contact is closed
• Reversed: Reverses reporting logic. Contact closed becomes opened and reversed.

The SNMP trap Custom Fault must be enabled

Advanced Config

Enable and configure various monitoring features.

The Advanced Config page

• Power Sources Monitoring
  • Monitor AC Power enable AC power monitoring (or Monitor DC power on ENA2060 amplifier)

• Ethernet Switch Port Monitoring
  • Monitor Eth 1 monitor Ethernet switch port 1 cable connection
  • Monitor Eth 2 monitor Ethernet switch port 2 cable connection