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Flexible System Design <br /> The modular design of the technology provides scalability in handling the needs of a small or a <br /> large system. In addition to scalability, the flexible system design includes narrowband simulcast <br /> in the 12.5 kHz range. Large and heavily populated areas will benefit from the narrowband <br /> simulcast feature due to its improved frequency efficiency. <br /> STARCOM21 Trunking Call Services <br /> Motorola's STARCOM21 trunking system offers a wide range of advanced call services to meet <br /> the demanding communications needs of a diverse, mission-critical workforce. Motorola's <br /> calling features and benefits are described below: <br /> Talkgroup Call <br /> The Talkgroup Call is the primary communication level in an ASTRO 25 trunked system as the <br /> majority of conversations take place within a talkgroup. Radios assigned to a given talkgroup <br /> are provided with Talkgroup Call capability and can communicate with other members of the <br /> same talkgroup. Talkgroup Call provides the effect of a "dedicated channel" for each talkgroup. <br /> Multigroup Call <br /> A Multigroup Call is a call involving multiple talkgroups at the same time and can be initiated by <br /> a properly authorized console dispatcher or radio unit. The talkgroups that are addressed in the <br /> call are pre-programmed within the radio units and system. The advantage of Multigroup Call is <br /> the ability to simultaneousiy communicate important information to multiple talkgroups quickly <br /> and efficiently. A single Multigroup Call transmission utilizes fewer channel resources and <br /> airtime than multiple, separate talkgroup calls. <br /> AllStart Talkgroup Call I <br />' AllStart is a talk rou settin that o erates in the same manner as the default call setu mode. 'i <br /> g P g P P <br />' This call setup approach requires that all sites with affiliated talkgroup members and other <br />� required resources be availabie before the call begins, otherwise, the system returns a busy <br />, response to the subscriber who initiated the talkgroup call. Once the required resources become <br /> available,the call is granted. <br /> FastStart Talkgroup Call <br /> "FastStart" is a talkgroup setting that requests a group call setup whether or not all affiliated <br /> Talkgroup members are available. This "Automatic Busy Override by Talkgroup" call setup <br /> method still requires the participation of all affiliated consoles, LOMIs (i.e, logging recorders) <br /> and critical resources before the call can begin. <br /> As channels at the affiliated talkgroup members' sites become available,they are added to the call <br /> in progress. (*Consoles and LOMIs(i.e. logging recorders)affiliate. FastStart will simplify the <br /> setup of automatic busy override functionality. FastStart applies regardless of the number of <br /> zones involved in the call. Caution: It should be noted that some talkgroup members may not be <br /> included in a FastStart talkgi•oup call if they happen to be affiliated at a busied, site. <br /> CSA.NoESS.FINAL.4-8-08 4 <br /> Motorola Contract No. 08-17033/LF <br />