Appendix 2 to Annex 1 General description of the Project 25 system 1 Services supported Services will be available on Project 25 systems in accordance with system type and other specifications within this Appendix. Where a service is mandatory for a Project 25 system type, such a system must provide that service. Where a service is a standard option, and a Project 25 system provides that service, it shall be provided in compliance to the standard. Technological limitations may preclude some systems from supporting certain services. 1.1 Types of systems Two types of systems are defined: non-trunked (conventional) and trunked. All Project 25 trunked radios shall be capable of operation in both types of systems. 1.1.1 Non-trunked (conventional) Non-trunked (conventional) systems possess no centralized management of subscriber operation or capability. All aspects of system operation are control of the system users. Operating modes within non-trunked systems include both direct (i.e. radio-to-radio) and repeated (i.e. through an RF repeater) operation. 1.1.2 Trunked Trunked systems provide for management of virtually all aspects of radio system operation, including channel access and call routing. Most aspects of system operation are under automatic control, relieving system users of the need to directly control the operation of system elements. 1.2 Availability The following table of telecommunication services (Table 2) shows service availability by system type. The services are further denoted as either mandatory or as a standard option, by system type. TABLE 2 Telecommunication services Bearer services Non-trunked Trunked Circuit switched unreliable data Standard option Standard option Circuit switched reliable data Standard option Standard option Packet switched confirmed delivery data Standard option Standard option Packet switched unconfirmed delivery data Standard option Standard option Teleservices Non-trunked Trunked Broadcast voice call Not available Mandatory Unaddressed voice call Mandatory Not available voice call Standard option Mandatory Individual voice call Standard option Mandatory Circuit switched data network access Standard option Standard option
Appendix 2 to Annex 1 General description of the Project 25 system 1 Services supported Services will be available on Project 25 systems in accordance with system type and other specifications within this Appendix. Where a service is mandatory for a Project 25 system type, such a system must provide that service. Where a service is a standard option, and a Project 25 system provides that service, it shall be provided in compliance to the standard. Technological limitations may preclude some systems from supporting certain services. 1.1 Types of systems Two types of systems are defined: non-trunked (conventional) and trunked. All Project 25 trunked radios shall be capable of operation in both types of systems. 1.1.1 Non-trunked (conventional) Non-trunked (conventional) systems possess no centralized management of subscriber operation or capability. All aspects of system operation are control of the system users. Operating modes within non-trunked systems include both direct (i.e. radio-to-radio) and repeated (i.e. through an RF repeater) operation. 1.1.2 Trunked Trunked systems provide for management of virtually all aspects of radio system operation, including channel access and call routing. Most aspects of system operation are under automatic control, relieving system users of the need to directly control the operation of system elements. 1.2 Availability The following table of telecommunication services (Table 2) shows service availability by system type. The services are further denoted as either mandatory or as a standard option, by system type. TABLE 2 Telecommunication services Bearer services Non-trunked Trunked Circuit switched unreliable data Standard option Standard option Circuit switched reliable data Standard option Standard option Packet switched confirmed delivery data Standard option Standard option Packet switched unconfirmed delivery data Standard option Standard option Teleservices Non-trunked Trunked Broadcast voice call Not available Mandatory Unaddressed voice call Mandatory Not available voice call Standard option Mandatory Individual voice call Standard option Mandatory Circuit switched data network access Standard option Standard option
R12-WP5A-C-0736!N05!MSW-E.docx