A selection of our products we supply that work over 3G and 4G

Push-To-Talk Over Cellular

Cotel "Connect" System

Instant nationwide digital coverage using the existing 4G and 3G networks.

Instant communications, with individual calls and group calls, are made the same way as a conventional two-way radio. The Cotel "Connect" system does not require its own repeaters or IP network, which substantially reduces the cost to businesses of building and maintaining a Wide Area Network.

Equipment Features

Full-Duplex Communication

The Cotel "Connect" handset is capable of full-duplex communication, which provides smooth telephone-style connection with PTT operation. There is no requirement to check or wait for channel availability as there is with conventional local or regional Wide Area Networks.

Flexible Monthly Budgeting

The Cotel "Connect" system provides a flexible way to finance your Radio Communications system. You can pay for each "Connect" handset on a managed monthly contract basis. No need for the high financial outlay on handsets and infrastructure as there is with conventional Wide Area Networks.

Industry Leading Compact and Lightweight Body

Measuring 59 x 95 x 32 mm and weighing in at 240 grams complete with battery pack allows for comfortable use for all operators.

IP67 Dust Tight and Waterproof

The Cotel "Connect" unit has been designed to be waterproof to a depth of 1 metre for 30 minutes. It can be used for outdoor work or in areas of high humidity.

Other Features

Cotel "Connect" Hand Units


Cotel "Connect" Mobile Units



Our brand new model of "Connect" radio is a new "hybrid" radio that can provide nationwide coverage over LTE networks, as well as being able to communicate with conventional VHF/UHF professional radio to work locally!

The versatility of having two technologies merged into one provides a range of options and applications for businesses, whether that is to communicate between different groups of users or as a way to seamlessly transition from PMR to PTToC (Push-To-Talk over Cellular).

This new model of radio contains all of the features required for PTToC operation, as listed above, and also has the option to communicate over an Analogue/Digital PMR radio network. Two PTT buttons, one for cellular, one for PMR, allows the user to easily communicate with different groups of people or individuals at any given time.

pmr and cellular radio can communicate between eachother

Cotel "Connect" Q&A


The new Cotel "Connect" system enables two-way radio-style communication, with the ease and convenience of PTT (Push-To-Talk) operation over our nationwide 4G and 3G networks. This is an alternative to traditional radio as it provides users with telephone-style conversations including full-duplex communication, and nationwide coverage without investing in costly radio network infrastructure.

What is the Cotel "Connect"?

The Cotel "Connect" is a Cotel SiteMaster Hand Unit that provides wide-area communication using the 3G and 4G networks. It allows you to make group calls or one-to-one calls in the same manner as conventional two-way radio. The Cotel "Connect" system can achieve full-duplex communication, so you won't have to wait for the channel to become free, and because it uses the 3G and 4G networks, range isn't a problem - you can get in touch wherever you are!

What is involved in the installation of the system?

There is nothing better than establishing a managed rental agreement with Cotel renting, or purchasing the Cotel "Connect" unit and signing up to a SIM & server contract running over two or three years. We will set up the SIM and terminal to your preferences, provide operating instructions and if necessary, install in-car chargers into your vehicles. You are then ready to go.

Does the Cotel "Connect" Unit require a SIM card?

Yes, the Cotel "Connect" unit does require a SIM card. However, it is a custom SIM, different from your regular Smartphone or tablet as the Cotel "Connect" provides other features, like the Emergency button, Man Down and Lone Worker functions. These features are ideal for working environments where employees are operating independently and need to be in immediate contact by voice or in the case of an emergency.

The Cotel "Connect" SIM card will not work in any other device, and a phone SIM card will not work in an the Cotel "Connect" unit.

What are the advantages of the system?

Is the Cotel "Connect" system just a mobile phone?

No, the Cotel "Connect" is not just another mobile phone. It's a Push-To-Talk two-way radio terminal that works over the 4G/3G networks. The unit is designed to be used for commercial environments where you need to group call and talk to one or more parties straight away. There is no need to dial a number as you push to speak directly to the other person or people within the group. It is designed to withstand rough environments and meets tough IP67 standards. If you have any other questions, do not hesitate to contact Cotel Customer Care.

What advantages does it have over traditional radio?

What is the cost involved in setting up a Cotel "Connect" network (e.g. does it need a repeater)?

Unlike traditional radio, there are no requirements for infrastructure investment. No need to invest in repeaters, cabling, and radio programming. Once setup by Cotel, it’s as simple as turning on the unit and starting the call by pushing the PTT (Push-To-Talk) button. Cotel provides all the after-care and customer care service.

Where is the server located that manages the network?

Our server is based in a secure location in the UK. We've worked diligently to make sure that the highest level of encryption is in place on the cloud server, to secure your private data and communications as well as adhering to all data privacy handling requirements to maintain your best personal security.

What is included in the Cotel "Connect" Data Plan?

what is the next step? What do I need to get started?

The first step is to contact Cotel for help and advice prior to proceeding. Demonstration equipment is available for you to try. We can offer you various packages including a managed rental agreement with a two or three-year plan which includes support and a private secure network.

So, if you are looking for regional or national communication scheme without the hassle or financial commitment of radio infrastructure, the Cotel "Connect" system with its excellent audio, full-duplex communication and excellent health and safety features is your answer.

For more details about the Cotel "Connect" system, contact our team today on 08000 960 970 or email u2us@coteltelecom.co.uk


For a series of leaflets documenting our product range, see the Leaflets page.