FreeSBC Initial Configuration

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Applies to version(s): v3.0

Initial configuration of the FreeSBC is done through a web browser (Chrome, Firefox or other). Before starting, you need the following information:

  • Product key: it has the format VTB-XXX-XXXX. If you do not have this key, please go to our FreeSBC Download site.
  • Hostname of the unit. It is important to set the hostname correctly and not modify it later, otherwise you will need a new license
  • Is the system used as a standalone unit or is it used in a Primary/Secondary configuration?
  • Does the system require external transcoding? As an example, G.711 to G.729a transcoding
  • Role of each of the network interfaces

Then, follow the procedure below.

Initial configuration of the FreeSBC

1- Open a web browser to the IP of your server, on port 12358. Example if your server address is, the URL would be:
2- You will get the SBC Configuration Wizard and click on Continue
TSBC WebPortal Configuration wizard.jpg

3- You need to accept the EULA agreement
TSBC SW EULA agreement 1.png

4- Enter your activation key and hostname
** No need to enter host name for AWS.
TSBC SW Enter activation key 1.png

5- Enter your SSH and WEB root password
** No need to enter SSH password for AWS.
TSBC-SW Enter SSH WEB Password.png

6- Select the configuration of your SBC - either standalone, or in a Primary/Secondary configuration
** Not applicable for AWS.
TSBC SW standalone 1.png

7- If the system requires external transcoding, select it here. As an example, if the system needs G.711 to G.729a transcoding, then select yes.
** Not applicable for AWS.
TSBC SW transcoding 1.png

8- Here you will choose the role of the network adapters in the system here is a short description of each type:

  • mgmt: Used for management of the system (suggested name: mgmt0)
  • ctrl0: Used for communication with the external transcoding devices (suggested name: ctrl0)
  • ctrl1: Same as ctrl0. Adds redundancy (suggested name: ctrl1)
  • LAN/WAN: SIP/RTP access to private network (suggested name: LAN0) or public network (suggested name: WAN0).

You need to configure all IP interfaces. In case of doubt, configure them as management interfaces.
TSBC SW choose LAN interface role 1.png

9- You can select the "+" sign to get more information on this interface
TSBC SW choose LAN interface role 2.png

If 1+1 (control networks ctrl0/ctrl1) or multiple vlan interfaces are needed, make sure all of them are assigned to the appropriate MAC address taken from the Platform (VMware Instance settings or other)
Initial screen Match MAC 1.pngNetwork adapters MAC Address primary 1.png
10- Once completed, you will be asked get the license seed of this unit to allow for license installation. Please go here for instructions: Retrieving a License for SBC Units
To get help, please contact TelcoBridges TB Support.

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