Link Setup Page

Telos Link provides a reliable method of sending and receiving high quality audio over WAN networks and the internet. Licenses are purchased from your Telos representative and then enabled in the “Maintenance” window. From the home-page, click on “Link” to monitor and configure network and internet links.

Figure 1 - Opening the Link Gateway home page

Figure 2 - The monitoring and configuration page of the Link page

In Figure 2, two groups of eight licensees have been purchased giving a total of sixteen licenses.

Figure 3 - Each of the sixteen codecs (links) is individually configured

Once the Input Label is set, open Dashboard and navigate to the Output pane and type the Input Label into the search box. Drag and drop the output into the Virtual Port, IFB or Group you wish to send via Link. A Livewire+ AES67 channel number will automatically be allocated by Link. Link will also accept multicast addresses in this field.

From the Link configuration window (Figure 6), type an available Livewire Channel or Multicast Address into the Output Channel/Address field. Add a label to describe the audio being received in the Output Label field.

Now that audio can be sent between Link and other Telos Infinity devices, it is time to configure Link to send and receive audio across the WAN connection or internet.

Enter the static IP address and port number of the Telos Infinity Link at the other end of your internet connection in the Peer Device Information field using the format “IP Address:Port Number”. Be sure to use a public IP address as FQDN is not supported. The moment you exit the Peer Device Information field, the input will start streaming to peer the Infinity Link.

Figure 5 - Peer Device Receive Configuration

Select an appropriate bitrate and type from the Codec Profile dropdown menu. Each codec represents a single audio channel, so choosing 2-channel (stereo) from the Channel menu automatically uses the next available codec for the second channel.

Finally, set the Receive Port to the IP address of the interface connected to the Internet and the port number forwarded through your firewall. In general, we recommend a non-standard port starting at 21000.

Note - For additional information on router configuration and port forwarding, please see the following section, “Router Configuration and Port Forwarding”.

Link Codec Configuration

Operating State

Enable or disable the channel

Channels

Set the codec to mono or stereo - this is dependent on the codec profile selected in “Send Profile” below.

Input Label / Source Name

Enter the name of the link, this appears in the configuration window in Dashboard

Input Channel Address

The Liverwire+ channel.

Send Profiles

Pull down the menu to select the required codec

Send Address

IP address and port of the sending Link device

Output Label

Enter the name of the link, this appears in the configuration window in Dashboard.

Output SAP advertisement

Enable or disable SAP advertising

Receive Address

The IP address and UDP port number of the receiving device that Link is sending to.

Receive Channel

Optional Livewire+ channel.

Link Offset

The jitter buffer size in milliseconds. Making this too large will causes excessive audio delay, but making it too small could result in packet loss and audio distortion.

Configuring the Link Receiver

Click on the configuration button in the receive-window as shown in Figure 5.