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TeleServer Message Switch

TeleServer^® Message Switch provides a comprehensive solution to the problem of supporting mobile law enforcement agents over different types of media including Local Area Networks (LAN), radio systems, and internet connections. It enables law enforcement agencies to communicate with users with just the right degree of service that a particular application calls for. This can range from no knowledge of the type of link to complete control of the communications session. It also provides the following critical capabilities: ease of use, network management, good performance, guaranteed message delivery, and standard programming interfaces.

When used in conjunction with the mobile client public safety application, law enforcement agents are able to easily exchange timely information about incidents, accidents, arrests, and warrants, and the people involved in them.

Features and Benefits

Supports hundreds of simultaneous users

Powerful remote management and control

Based on Microsoft Server and database technology

Authentication provided through Microsoft Active Directory

Communications can be made over various connections, including: wireless and LAN based networks

Automatic logging of all important communications with remote users

Architecture

TeleServer is a reliable, high-performance, open-standards message switch based on Microsoft’s highly reliable and very scaleable Windows Server technology. The system prioritizes all communications, logs errors, maintains statistics for later reporting, provides system security, displays real-time status information, and provides an administrator interface to the system control functions.

TeleServer is the central component of a modular message switch comprised of Management Controls, a Communications Transport, Specialized Backend Application Interfaces, and Electronic Software Distribution. If functions need to be added or changed, each of the components are flexible enough to do so without impacting the operation of other system components.

Management Controls

This component is responsible for all recording of problems, providing real-time status information, and logging of system statistics. It also controls the distribution of software and table updates to mobile units, and is responsible for escalating system problems to the appropriate persons or systems.

The Management Controls easily manage and define the TeleServer to meet the needs of the department. With TeleServer, System Administrators are able to:

Define individual agency / department organizations

Delagate management responsibility to specific individuals in each agency

Specify the number of attempts that the message switch should make to send a message to a mobile unit before an alert is generated and routed to the Administrator

Specify the time in which a message must be delivered before a warning message is generated

Define IDs and passwords for each user by region

Specify the parameters which control password aging, deactivation, etc.

Define the user community into one or more logical sub-groups for easy administration

Specify the level of security authorization for each sub-Administrator

System security is provided by utilizing operating system capabilities in the Microsoft NT’s operating system software. All privlieges for each user are stored in a SQL database, which is then used to control access to all system components. One or more System Administrators and multiple Agency Administrators, depending upon departmental needs, are defined within the system and given authority as required.

Communications Transport

The message switch ensures highly reliable and efficient communications over a number of wireless and LAN networks. This flexible design insulates the message switch from all dependencies on the particular capabilities of each network. Protocols specifically designed for wireless data communications optimize every communication over the open IP network protocol. In the case of a proprietary wireless network, the TeleServer utilizes Telepartner International’s proprietary protocol. All functions can be accessed over LAN connections as well.

Specialized Backend Application Interfaces

The backend application interfaces provide a consistent way for data to be stored in or retrieved from a variety of sources. This common interface is based upon industry standard IP protocols, and thus simplifies the mobile application. In most cases, adding a new database in the future will not involve any changes in the mobile software.

NCIC/NLETS

TeleServer manages the communication with the NCIC application over TCP or TN3270 links. Commands originating in  the mobile client are properly formatted and sent to the mainframe. The mobile client then formats responses for user readability. The Administrator configures the system for as many simultaneous sessions needed, thus allowing for greater system throughput and line utilization.

CAD Interface

The central component of this interface is a well-defined API that allows a variety of Computer Aided Dispatch (CAD) systems operating in regional towns to communicate with the mobile units through the Message Switch. Each CAD software vendor is required to write a set of functions using the common API defined in the specification. These functions will enable the CAD system to respond to commands issued by the CAD Interface sub-system using the API.

RMS Interface

The Records Management System (RMS) interface uses an interface similar in architecture to the CAD interface. All data exchange is in "record format" with display responsibility delegated to the mobile unit. The message switch queues all requests to each Records system and associates a response with the original request. Requests which go unanswered, or are sent to systems which are unavailable, are noted as such after the prespecified time set by the Administrator.

Electronic Software Distribution

TeleServer automatically communicates with the mobile client application and determines on an application by application basis what updates, if any, are queued. Should an update be scheduled, TeleServer initiates the transfer of the new data, minimizing transmission to only the changed data. Should this transfer be interrupted for any reason, when it resumes, the system will begin again where the last successful transfer was completed, thus avoiding expensive duplicate retransmissions.

Technical Requirements:

Windows Server operating system

Microsoft SQL Server

Redundant server configuration (recommended)

Internet / wireless WAN access

Net Motion (or equivalent, configuration dependent)

Microsoft Exchange software license (optional)

RAID disk access subsystem (optional)

Interface to external clocking system (optional)

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