Despatch Box ‘Zero’ starter package + engineer install


Out of stock

Receive SIP calls for radio and podcast interviews with this tiny desktop box complete with microphone, headphones, and accessories.

The Despatch Box from In:Quality connects to your existing internet connection and allows radio stations to call you in full studio quality.  The ‘Zero’ version is shipped pre-configured with your own unique address, so you only need to plug it in, and wait for a call.

For privacy, the microphone includes a physical on/off switch.

Package includes…

  • Despatch Box ‘Zero’
  • USB Microphone and stand
  • Headphones
  • 3m Ethernet Cable (can upgrade to longer cable)
  • Power Cable and Adaptor
  • 12 months subscription (renews for £50 annually)

* Broadband and router not included


Engineer Install

  • Includes an installation appointment in next 14 days, subject to mutual availability.
  • Engineer will offer advice on placement of equipment for best acoustic performance.
  • Option to install Powerline adaptors, if cabled access to broadband hub is impractical.
  • Option to configure your router to allow remote troubleshooting and configuration.
  • UK addresses only.



  • Which UK radio stations can call me?

BBC News programmes such as Today, PM, Newsday etc can call SIP addresses from ipDTL.  Other London based BBC programmes can call SIP addresses via London Control Room.  BBC Radio 5 live in Salford can call SIP addresses from ipDTL.

LBC can call SIP addresses from their ipDTL account.

BBC Local Radio stations currently require contributors to use a BBC BASS address.  In addition to a account, the Despatch Box can be configured with a BBC BASS account which can be obtained free of charge from BBC Local Radio.

SIP as an ISDN replacement is an emerging technology in the broadcast industry.  You can expect SIP calling to become far more common in the near future, as the ISDN network rapidly continues to fade out.


  • Can I make outbound SIP or ISDN calls?

As the name suggests, the Despatch Box ‘Zero’ is designed to be ‘zero configuration’.  It arrives pre-configured, and the user simply switches the microphone on and off.  Technically savvy users can access it through its IP address from a nearby computer, or attach a monitor, keyboard and mouse.  Outbound calls can be established using these methods. An additional Tel+ subscription is required for outbound ISDN calls.


  • Can I receive inbound ISDN calls?

There is a way to receive an ISDN call when accessing the Despatch Box’s configuration page via the methods mentioned above.  ISDN numbers are assigned dynamically on demand, and are therefore not available in advance. So, while this is possible, we only recommend this to users who understand and can work around these limitations.  An additional Tel subscription is required for inbound ISDN calls.


  • Can I connect the Despatch Box to the internet using wifi?

No. Wi-Fi or mobile broadband are the most common causes of radio interviews dropping off. To ensure reliability and confidence in the platform, we make no apology for insisting that our Despatch Box is connected to your broadband hub using a physical cable.  Almost all home hubs have ethernet sockets on the back.  We can supply extra long cables, or ‘Powerline’ adaptors where cable routing is not an option.


Technical Specifications

  • Supports SIP protocol with Opus audio codec
  • Network via Ethernet (no wifi)
  • Defaults to DHCP. Static IP optional.
  • Partially compliant with EBU Tech 3326 / N/ACIP
  • USB & Micro HDMI ports for optional use with monitor, keyboard, and mouse.