Newbury-based Cognito, the Dowty Group Plc subsidiary is to launch its two-way messaging and mobile data service next month. The company has secured its first customer, the London ambulance service, which is to use Cognito’s custom-built Emissary terminals offering two-way paging. The terminals are around 7.5 by 1.2 by 3.5, have QWERTY keyboards, functions keys and a 40 by 40 character liquid crystal display. Messages can be sent user-to-user or between mobile users and a central site. Like Hutchison, Cognito is also offering a mobile data service and enabling field workers to collect and send data between host computers and portable machines – the Emissary terminals come with a built-in modems or users with existing data terminals can add a radio modem into their system – Cognito offers the terminals which it has sourced from the Woolwich-based Babcock Group. The two way paging service costs between UKP55 and UKP69 a month including the cost of sending messages, while the mobile data prices will be negotiated with individual users.