I. User Requirement Analysis

1.1. Customer Current Status and Requirements

(1). In response to the current situation of each brigade and detachment, establish an information-based integrated platform dispatch system to connect all brigades and detachments, achieving an overall improvement in informatization construction level;

(2). Establish an integrated dispatch system, providing each brigade with a sub-account for comprehensive management, with the capability to expand the integration of various modules in the future, such as AI cameras, emergency broadcast systems, automatic fire alarm systems;

(3). Achieve interoperability among all brigades, interconnection between the dispatch console and mobile APP, and communication between all brigades and detachments;

1.2. Solution Overview

The Raytrans Integrated Dispatch and Integrated Communication System combines the advantages of numerous domestic and international dispatch systems, complies with the International Telecommunication Union (ITU-T) standards and relevant Chinese communication industry standards (YD), and integrates IP switch design concepts with group telephone functions. The system incorporates the most advanced computer software technology and VoIP audio/video technology, featuring command, dispatch, broadcast, intercom, loudspeaker announcement, alarm, pre-plan, electronic map, and unattended operation functions. The system design is both grounded in national conditions and uniquely advantageous in technological innovation, making it an ideal new-generation integrated dispatch and broadcast/intercom device for private networks and large/medium-sized enterprises and institutions in government, education, petroleum, chemical, mining, smelting, transportation, electric power, public security, military, and coal mining sectors.

1.3. Product Advantages

Compared with traditional integrated dispatch systems, the Raytrans IP-based integrated dispatch solution offers incomparable advantages.

Ø SIP Protocol: The system adopts the standard SIP protocol and is compatible with various SIP terminals available on the market;

Ø Distributed Support: The system adopts a fully distributed architecture, enabling multi-point interconnection and directly supporting cloud deployment modes, while the dispatch console can support partitioned management;

Ø Combined Administrative and Dispatch Functions: The system can serve both administrative office use and dispatch command functions via the dispatch console at any time. The system can effectively integrate office domains and the PSTN network through the enterprise informatization platform to achieve collaborative integration on a larger scale;

Ø Easy Upgrade and Expansion: Within the maximum capacity supported by the hardware, dispatch extension expansion can be achieved simply by adding software licenses. System upgrades are convenient and do not involve the addition of hardware modules;

Ø Development Interface: The system also provides secondary development interfaces and SDKs, enabling integration with mobile APP;

Ø Alignment with Next-Generation Technology Development: The development of Next Generation Networks (NGN) has become increasingly mature, and "Triple Play" will become a reality. The Raytrans Integrated Dispatch System conforms to the NGN architecture and carries no risk of obsolescence due to technological updates.

II. Solution Design

2.1. System Networking

2.2. Solution Description

Ø The integrated dispatch solution deploys a dispatch system and host (including primary and standby) in the equipment room, connected to the LAN, to meet the communication, dispatch, and collaboration requirements of various functional departments; each brigade installs a dispatch console, connected to the detachment via the network;

Ø Field personnel, provided the network and the detachment intranet are accessible, can use the mobile APP to upload on-site photos, voice, and video to the dispatch console;

Ø Hardware: dispatch host system (primary + standby), dispatch console, mobile phones, IP phones, broadcast gateway, etc.;

Ø The detachment's dispatch console can perform emergency dispatch to dispatch extensions in all areas or in designated areas;

Ø All terminals use the SIP protocol and register to the dispatch system via IP, enabling internal and external calls, broadcast, dispatch, loudspeaker announcement, and conferencing functions;

Ø The dispatch center supervisor uses the dispatch console to make loudspeaker announcements to designated functional department dispatch extensions for emergency dispatch;

Ø The system adopts a routing signaling management approach to effectively manage the communication routes of each extension, reasonably arrange voice stream transmission, and ensure timely signaling delivery and rational bandwidth utilization.

III. Design Principles

3.1. Openness

Ø Open Technical Interface: Standard open SIP protocol;

Ø Open Host System Environment: Based on the LINUX operating system, the underlying environment is fully open, facilitating system expansion and maintaining application software portability;

Ø IP Distributed Deployment: Raytrans Integrated Dispatch supports remote deployment of dispatch extensions and various terminals across LAN or WAN areas, building a unified national emergency command center.

3.2. Practicality and User-Friendliness

The visual dispatch console can be used on the dedicated dispatch host or directly run on a PC for management. The interface is simple and intuitive, with powerful functions and strong control over information security.

3.3. Advancement and Compatibility

The system can be used for administrative office purposes during normal operations and can also be used at any time via the dispatch console for dispatch command and broadcast/intercom functions. The system effectively integrates office and PSTN networks through the enterprise informatization platform, achieving collaborative integrated dispatch and broadcast/intercom on a larger scale. Centered on the open SIP protocol and combined with advanced audio/video and call control technologies, it provides an easy-to-manage, open system based on IP networks that can interconnect with various standard SIP terminals in the industry. The system can enable multiple dispatch console software instances, with each dispatch console managing its corresponding area, allowing different business scenarios to be shared or distinguished within a single system.

IV. Function Introduction

4.1. Visual Dispatch Console

Function Item	Function Description
Left Handset	Left handset of the console
Right Handset	Right handset of the console

Call	1. Place a call to the connected terminal 2. Place a call to the connected mobile phone (requires external line)
Intercom	Communicate with the selected terminal
Hang Up	Immediately end the call with the selected terminal

Monitoring	Monitor calls of selected terminals without the other party's awareness; supports both call monitoring and ambient monitoring
Barge-in	Convert the call of a selected terminal in progress into a three-party conference mode
Break-in	Convert the call of a selected terminal in progress into a call with the console, forcibly disconnecting the other party

Whisper	Communicate with a selected terminal that is currently in a call, without the other party being aware
Transfer	Transfer the call of the selected terminal to a designated terminal
All Zones	The main interface displays all zone terminals visible to the user

Zone	The main interface displays the zone terminals visible to the user
Zone Conference	Pulls all online terminals currently displayed on the console into the conference room
Zone Broadcast	Pulls all online terminals currently displayed on the console into a broadcast task; terminals are listen-only and cannot speak

Zoned Broadcasting

1、Pull all online terminals currently displayed on the console into the broadcast task 2、Support inserting live voice announcements into the current broadcast task, i.e., the broadcast pauses and resumes after the announcement ends

Multi-Select	1、In multi-select mode, the console can select multiple terminals simultaneously for operation 2、In multi-select mode, multi-party conferencing is supported 3、In multi-select mode, multi-party paging is supported 4、In multi-select mode, multi-party broadcasting is supported 5、The system defaults to single-select mode
Multi-Party Conference	Add the selected multiple terminals to the conference, supporting cross-partition operation

Multi-party Paging	Add selected terminals to a paging task, with cross-partition support; terminals are listen-only and cannot speak
Multi-party Broadcast	1、Add selected terminals to a broadcast task, with cross-partition support 2、Insert paging into the current broadcast task, i.e., the broadcast pauses and resumes after the paging ends

Contacts	Quick search of contact numbers with one-touch dialing
Emergency Broadcast	Interrupts all calls and broadcasts on terminals and plays the preset broadcast task
Call Queue	When both left and right handsets are busy, the call queue displays the numbers of incoming calls waiting in the queue in real time

Call Information

Real-time display of call records

4.2. Conference Room

Function Item	Function Description
Invite	Invite terminals or external lines to join the conference
Remove	1、  Remove the selected terminal from the conference room

Mute	Set the selected terminal to mute mode, i.e., listen-only mode
Unmute	1、  Restore the selected terminal to normal mode, i.e., normal two-way audio
Mute All	Set all terminals in the conference to mute mode

Cancel All Mute	Unmute all terminals in the conference
Close Conference	Remove all terminals in the conference, including the console phone, from the conference room; the conference ends

4.3. Broadcast Tasks

Function Item	Function Description
All Tasks	Successfully created broadcast tasks, categorized as: music, voice announcement, text, live pickup, and file
Music Tasks	Successfully created music tasks

Loudspeaker Task	Successfully created loudspeaker task
Text Task	Successfully created text task
Recording/Broadcast Task	Successfully created recording/broadcast task

File Task

Successfully created file task

Add

2、  1. Create a new instant broadcast task, which plays immediately upon creation 3、  2. Create a new scheduled broadcast task, which plays at the specified time upon creation 4、  3. Scheduled broadcasts support fixed time and weekly cycle modes 5、  4. Broadcast duration can be specified; the default is unspecified

Batch Delete	Delete the checked broadcast tasks from the broadcast task list.
Playback	1、Play the created broadcast. 2、Playback rules include sequential, random, and repeat playback; the default is sequential playback.

Volume Adjustment	2、  The volume of the currently playing broadcast task can be adjusted.
Stop	3、  Stop the currently playing broadcast task.

Delete

Delete the selected broadcast task

4.4. Unattended Operation

Function Item	Function Description
Call Forwarding	Call forwarding can be configured when the dispatcher is away from the dispatch console
System Lock Screen	After call forwarding is configured, the dispatch console enters lock screen mode

Cancel duty

Unlock the screen

4.5. Alarm

Function Item	Function Description
Query	Filter the values matching the criteria on the current alarm page
Uncleared Alarms	Display uncleared alarm details, including alarm source, status, occurrence time, etc.

Cleared Alarms	Displays the contents of cleared alarms
Alarm Acknowledgment	Confirms whether an alarm exists and its alarm level
Clear Alarm	Clears the currently selected alarm item

Intercom

Talk with the current alarm source

4.6. Video

Function	Description
Video Surveillance	Real-time viewing of the environmental status of the area where the device is located
Video Snapshot	Capturing a snapshot of the current surveillance image

Video Recording	Records the current surveillance image
Recording Playback	Plays back recorded video
Video Linkage	When the terminal connects to the dispatch console, the video from the camera associated with the terminal automatically pops up

4.7. Electronic Map

Function Item	Function Description
Current Map	Displays the current map and the location of the terminal
All Areas	Displays all terminals on the current map, with support for area-based filtering

Function Keys	Allows operations such as calling, intercom, monitoring, forced insertion, forced release, private call, and call transfer for terminals on the current map
Edit	Upload maps and edit terminal positions on the map
Upload Map	Upload the map to be displayed

4.8. Contingency Plans

Function Item	Function Description
Broadcast	Terminal alarm triggers broadcast task
Video	When a terminal alarm occurs, the dispatch console automatically pops up the video feed

SMS	Terminal alarm triggers SMS transmission
Intercom	Terminal alarm triggers automatic call connection
Fax	Supports electronic fax send/receive and fax machine send/receive