Installation and maintenance of two-way radio infrastructure; maintenance and repair of two-way radio subscribers, namely, mobile and portable terminals; maintenance and upgrading of two-way radio applications

Telecommunication services, namely, electronic, electric and digital transmission of voice, and data via wireless networks; electronic transmission of voice, text, data, and information by means of two-way radios, mobile radios, digital mobile radios and handheld units, namely, dispatch radios, digital mobile radios; transmission of positioning, tracking, monitoring and security data via wireless communications devices; wireless data services for mobile devices via a wireless network for the purpose of sending and receiving electronic mail, data, information, text, numeric messaging and text messaging and for accessing a wide area communications network; providing management of PTT (push-to-talk) services to enable users to connect and collaborate on their devices