Configuration Settings Tab Parameters

The easiest way to configure Nyquist appliances is to obtain configuration settings from the Nyquist server by selecting Get Configuration From Server. However, you can manually configure an appliance through the appliance’s Web UI when Standalone Operation is enabled (see "Standalone Operation Configuration Settings").

To view or manually configure the Nyquist appliance configuration:

1    On the appliance Web UI’s main page, select Configuration Settings.

2    View the settings as described in Table 5 for normal configuration, or modify the settings as described in "Standalone Operation Configuration Settings" for Standalone Operation configuration.

3    If changes were made (Standalone Operation only), click the Save Configuration Settings, Save Multicast Addresses (Audio Cast), and/or Save Multicast Addresses buttons to save your changes.



The following table describes the Configuration Settings tab settings when Standalone Operation is not enabled for this device:

Table 5. Configuration Settings (Standalone disabled)

Get Configuration from Server

Retrieves configuration settings (i.e., web username, server, and local port) from the TFTP server specified in the Network Settings (see "Network Settings Tab Parameters").

Web Username

Identifies the username of the current user.

Emergency-All-Call

Identifies the IP address, port number, cut level (volume), and station list used for emergency all-call pages.

All-Call

Identifies the IP address, port number, cut level (volume), and station list used for all-call pages.

Audio Distribution

Identifies the IP address, port number, cut level (volume), and station list used for audio distribution.

Multicast #

Identifies the IP address, port number, cut level (volume), and station list used for the multicast audio stream of one (or more) zones.


The Configuration Settings tab also displays the following information for each Device Station attached to the device:

Port Number

Shows the output port/channel number of the appliance.

Port Type

Shows the device type to which the port connects.

Account ID

Shows the SIP account (IP address) associated with the device preceded by the extension of the device associated with this port.

Local Port

Shows the port used for SIP.

Username

Shows the username or extension for the station associated with the port.


Standalone Operation Configuration Settings

Configuring this device consists of specifying one or more of the following:

The SIP server addresses, ports, and SIP extensions at which to register for incoming SIP pages and announcements.

The output multicast (Audio Cast) addresses (and ports) to which the device will send one or more digitized line input signals.

The input multicast addresses (and ports) from which the device will receive digital signals, which will then be converted to analog and played to one or more line outputs.

To use this device to make announcements or SIP calls, connect a microphone to one of the Line Input ports (possibly through a preamp device, which would convert the mic-level signal to a line-level signal). For the Multicast Addresses (Audio Cast) entry whose channel matches the line input port, specify a codec, cut level, and multicast address and port to which the signal will be streamed. That stream can be consumed by one or more devices to receive announcements or SIP calls.

To receive announcements or SIP calls, configure one or more Multicast Addresses entries with the multicast addresses and ports from which to receive the input streams. Specify a codec, cut level, and output channel (i.e., Line Output port) on which to play the received (and decoded) audio signal.

AoIP Gateway Standalone Configuration

Figure 6. Appliance Configuration Settings (Standalone enabled)


The following table describes the Configuration Settings tab settings when Standalone Operation is enabled for this device:

Table 6. Configuration Settings (Standalone enabled)

Device Type

Displays the type of this device.

Device Name

Provides a name for this device.

Web Username

Specifies a web username for this appliance.

Web Password

Specifies a web password for logging into the appliance.

Web Confirm Password

Re-enter the password used to log into the appliance.

Time Zone

Specifies the time zone in which the device resides.

External Relay Trigger 1/2

Enables this device to apply a trigger signal to the external relay output to notify an external device that an output signal is being sent to Line Output 1 or 2.

Enable SIP Calls

Enables this device to receive one-way SIP calls, wherein only the caller can be heard (such as announcements).

Note: If enabled, other SIP-related configuration settings are displayed.

SIP Server Addressa

Specifies the IP address of the SIP Registration Server with which the device will register.

SIP Network Porta

Specifies the IP port on which to communicate with the SIP Registration Server (typically 5060).

SIP Codecsa

Displays a read-only list of codecs allowed on SIP sessions.

SIP Extensiona
(Line Output 1/2)

Specifies the SIP extension for Line Output 1 or 2.

The extension, along with the IP address, is used to specify the URI used to place a SIP call to this extension:

sip:<extension>@<local_ip_address>

SIP Usernamea
(Line Output 1/2)

Specifies the SIP username used to register Line Output 1 or 2 with the SIP server.

SIP Passworda
(Line Output 1/2)

Specifies the SIP registration password used to register Line Output 1 or 2 with the SIP server.

Cut Levela
(Line Output 1/2)

Specifies the intercom cut volume to be used for SIP calls over Line Output 1 or 2.

This can be a value from -42 and 0 dB.

The default value is -20 dB.

Note: To modify, click on the value, adjust the slider on the popup using the cursor keys or mouse, and click the check box button.


The following parameters appear for the two Multicast Addresses (Audio Cast) (i.e., outgoing streams) and for each of the Multicast Addresses (i.e., incoming streams) configured for this device.


Enabled
(audio cast only)

Enables audio signals from the Line Input ports to be sent to the specified multicast addresses and ports.

Multicast IP Address

Specifies the multicast IP address on which to send or receive audio streams.

Multicast Port Number

Specifies the multicast port on which to send or receive audio streams.

Codec

Specifies the codec to be used when encoding or decoding audio. Select one of the following values:

G711 u-law

Intercom call quality

A narrowband audio codec that provides toll-quality audio at 64 kbps. The u-law version is primarily used in North America and Japan.

G711 a-law

Intercom call quality

A narrowband audio codec that provides toll-quality audio at 64 kbps. The a-law version is primarily used in most countries outside of North America and Japan.

G722

Tone and paging quality

A wideband audio codec operating at 48, 56, and 64 kbps.

OPUS

Music quality

An audio codec format designed for speech and general audio, supporting low latency, constant and variable bitrate encoding (6 to 510 kbps), and five sampling rates (from 8 to 48 kHz).

Channels

Channel(s) on which the audio streams will be input or output.

One or more of the following values:

Line 1

Line 2

Tip: If multiple output channels are selected, they will all use the same cut level. Fine tuning of cut levels per output channel can be adjusted using DSP settings.

Cut Level (dB)

Specifies the cut level for the audio stream.

This can be a value from -70 to 0 dB.

The default value is -20 dB.

Note: To modify, click on the value, adjust the slider on the popup using the cursor keys or mouse, and click the check box button.

Tip: If multiple output channels are selected, they will all use the same cut level. Fine tuning of cut levels per output channel can be adjusted using DSP settings.


Note: A maximum of 24 received multicast entries is supported.


Note: Multicast Addresses should be ordered by priority, highest priority first. If multiple streams are active on the same channel simultaneously, the one with the highest priority will be played. Set the Sorting switch to Enabled and drag entries up and down using the 4-way arrow symbols to rearrange the priorities.