USB SIP Codec ‘Zero’ Manual

Connecting the Cords

• Connect an ethernet cable from the SIP Codec to a LAN port on your internet router.
• Connect your USB microphone or audio interface to the SIP Codec, using any of the USB ports.  You should generally connect your headphones to the microphone or audio interface, not the SIP Codec.
• Connect the supplied power adaptor to the wall power, and connect the other end to the micro-USB power input on the SIP Codec. You should now see the boot sequence on the touchscreen.

Is it pre-configured?

When you made your order, we would have asked how you would like the device to be pre-configured.  If you declined this service, you’ll need to configure the unit before you can use it.

If it’s already configured – when it registers successfully – you should hear some beeping in the headphones (or audio output device), and you can begin receiving calls.  We offer a free first-time test service, which you can request by raising a support ticket.

Connecting a Monitor (optional)

You can connect any screen to the SIP Codec using an HDMI cable, and also a USB keyboard and mouse.

Once connected, the screen will display call status, any configured quick dial shortcut buttons, the device’s IP address, and your SIP address. There are volume controls for the microphone and headphones, along with a mute icon for each. Clicking the green status box will activate the virtual keyboard for manual dialing.

Remote Control from a Computer

You can control the SIP Codec and edit the configuration, from any computer on the same network. You’ll need to discover its IP address via your router, or by connecting a screen.  We can also ship the device with a fixed IP address if that helps.

Your network may also be configured to allow access at http://inqodec

Open a web browser and enter the IP address e.g. 192.168.1.XX

The default password for the web Interface is inqodec.  You may choose to change this.

There are many additional settings available here.  To access the menu, click the gear icon at the top of the page…

• Destinations – This works like a phonebook. Save, edit and delete entries.
• SIP Accounts – Configure your SIP account(s) and associated settings.
• Audio – Change the settings for your microphone or interface.
• Network – Set to DHCP by default. Configure static settings here.
• Security – Set web interface password, enable firewall, allow remote config.
• System – Set timezone and language, and update firmware.

Receiving a Call

Your SIP Codec is registered with a sip.audio account.  Your SIP address will be something like your.name@sip.audio

Ask the radio producer to call your SIP address. At the agreed time, wear the headphones and check that the microphone is switched on.  If ‘Auto Accept’ is disabled in the device settings, you’ll need a screen and mouse to answer the call using the checkmark button, otherwise the call will answer automatically.

Making a SIP or phone Call

A monitor and mouse is required for this, or access via a computer.

If quick dial buttons have already been configured, simply click the appropriate button, and the saved destination will be dialed.  Additionally, there is a full list of configured destinations below.  Press the phone handset icon to dial one of these.

To dial manually, click the green status box in order to activate the keyboard, and check that ‘SIP/Tel’ is highlighted. Enter the SIP address or phone number (Tel subscription required).  Phone numbers must start with a + and the country code (e.g. +1).  Click the green phone handset icon to dial.

Click the large red status box to end the connection, and confirm when prompted.

Making an ISDN Call

This functionality is no longer available, due to the worldwide ISDN switch-off.

Product Compliance & Safety

The following document contains safety instructions and compliance data for the USB SIP Codec’s main control board:

https://www.raspberrypi.org/documentation/hardware/raspberrypi/compliance/rpi_SAFE_3plus_1p3.pdf