Commtel operate on a strict trade only policy. You need to be a reputable installer (Minimum of a NICEIC registration required for electricians) of access control, security systems and or gates and barriers, with the requisite electrical, IT or tele-communications.
If you are a current customer, you can use our Online Shop. If you would like to set up an account, please contact our sales department.

Installers can purchase Telguard intercoms directly from Commtel or from an authorised distributor.

Installers can purchase Optimus products through our authorised distributors. We do not sell Optimus products directly to trade.

If you are not an installer, please feel free to speak with our Sales department for further information and finding a local installer.

All Telguard Intercoms come with a 2-year return to manufacturer warranty and programming support cover.

Our Command Unit comes with a 1 year manufacturer warranty. No programming support is included.

All Optimus Intercoms come with a 2 year manufacturer warranty via your supplier. No programming support is included.

Our product warranty covers all parts and Commtel’s labour for manufacturer faults. The warranty does not cover the removal or re-installation of the unit.

Programming support covers all remote programming changes and technical support. Please note that programming requests must be submitted via our online form.

For more information on our extended warranties and support agreements, click here.

  • Standard features depend on the product supplied. Downloadable spec sheets are available on each product page. If you can’t find the product you are looking for, please contact our sales team –
  • For Optimus features, please visit

Our 4G LTE Telguard & Optimus intercoms require a MIRCO SIM

We always recommend using one of our SIM cards as they are designed specifically to work with our intercoms. However, if you would prefer to provide your own SIM, you will need to have the following:

  • Calls
  • Texts (used for SMS alerts and when using one of our apps)
  • Data (only a very small amount is required if we are programming your intercom remotely for you)
  • Marketing messages switched off – these can sometimes cause issues with the intercom.
  • Voicemail turned off
  • If choosing a PAYG SIM, pop it in a phone to register it on the network provider’s app beforehand so that you can top up easily.

Click here to read our guide.

We have a range of tariffs for your Telguard or Optimus door entry system to suit all site requirements, including annual SIMs for sites which are unable to set up a direct debit. Click here to see what we have to offer.

  • If the Telguard unit is out of warranty or not covered by a support agreement, programming is charged at £30 + VAT.
  • For Optimus customers, please contact your installer.
  • Monday 8:30 – 17:00 (8.30 – 9.30 Staff training, skeleton staff answering phones)
  • Tuesday: 8:30 – 17:00
  • Wednesday: 8:30 – 17:00
  • Thursday: 8:30 – 17:00
  • Friday: 8:30 – 17:00
  • Saturday: Closed
  • Sunday: Closed