Postal Dispatch Switch Standard, Power Dispatch Switch Standard, IDM Dispatch Switch Standard

1

Call Category

Dispatch Call: Two-party or multi-party two-way voice call initiated by the Dispatch Console.

Conference Call: One-way and partial two-way voice call initiated by the Dispatch Console.

Group Call: Call initiated by the Dispatch Console to the entire preset group of users.

Includes dispatch calls (same as left) and administrative telephone calls.

When the dispatch switch is configured with administrative switching functions, dispatch users shall have priority; a certain degree of isolation between dispatch users and administrative users shall be maintained, and the isolation level shall be configurable.

Meets the highest standard of both

2

Network Access Mode

Network access mode:

Connection mode to the public network:

Connection mode between the digital SPC dispatch console and the public network.

Connection to the public network via digital interface A: outgoing calls require only one dial tone; incoming calls are automatically direct-dialed to extension users or transferred via the dispatch console. Connection to the public network via two-wire loop interface C2: outgoing calls require two dial tones; incoming calls are transferred to extension users via the dispatch console.

Connection mode to the private network:

The digital SPC dispatch console can be connected to the private network via digital interface A or two-wire loop interface C2. However, considering the complexity and non-standardization of private network interfaces, the connection interface between the digital SPC dispatch console and private network switching equipment shall be resolved based on actual conditions and is not specified herein.

Configurable with digital trunk, E&M trunk, and two-wire loop trunk; supports networking with other switches and implements DID, BID,

DOD2, and IOD1 call completion.

 

Including digital trunk (No.1 signaling, No.7 signaling, PRI signaling, V5.2 signaling, etc.); E&M trunk, two-wire loop trunk; PCM digital signaling may also be used.

3

Functions of the Digital Stored-Program Control Dispatch Switchboard

Dispatch-to-subscriber calls without link blocking

Subscriber-to-dispatch calls without link blocking

Dispatch calls have priority; regardless of the number of subscribers in off-hook, talking, or dialing state, the dispatcher can directly call subscribers or trunks; subscribers and trunks can directly call or hotline-call the dispatch console.

Provides real-time synchronized recording interface

— When the dispatch switchboard is configured with administrative switching functions, dispatch users shall have priority capability; a certain degree of isolation shall exist between dispatch users and administrative users, and the isolation level shall be configurable;

— The number of trunk routing directions shall be no less than 64, with the capability to process received numbers up to 24 digits;

— Under abnormal conditions (e.g., one-party permanent off-hook, line grounding, short circuit, etc.), automatic locking and recovery shall be provided for trunk lines or subscriber extensions;

— Self-diagnostic positioning and testing functions, capable of performing internal line tests and external line tests on subscriber circuits;

— Alarm function: in the event of system failure, audible and visual alarms plus two alarm contacts shall be provided;

— Recording interface available for real-time recording of dispatch console and dispatch subscriber conversations;

— The dispatch switchboard shall support connection of 10 or more dispatch consoles;

— Each dispatch console shall be equipped with two independently operable handset units;

— The keyboard dispatch console shall have 20 to 300 subscriber keys.

 

Provides 8 E1 digital signaling interfaces;

Supports non-blocking switching for 630 subscriber lines;

Connects up to 120 dispatch consoles via the dispatch server;

Provides synchronized recording capability for 2 E1 links (i.e., 60 telephone channels);

The dispatch console is equipped with two IDM-brand intercom microphones and speakers; the microphones support dialing, headset connection, and speaker interfaces, functioning both as telephones and as wired intercom terminal devices;

The dispatch switchboard can be integrated with the SDH optical transmission system;

The dispatch switchboard is compatible with both PBX mode and IPPBX mode;

The dispatch switchboard is fully integrated with video surveillance, video intercom, and video conferencing;

The dispatch switchboard is fully integrated with the GIS geographic information system;

4

Ringing Tone Category

Function to distinguish ringing tones between dispatch calls and ordinary calls

— Distinct ringing function: distinguishes external line calls, internal line calls, and emergency calls;

IDM defines multiple ringing tone settings with default values:

User urgently calling dispatch group or dispatch console urgently calling user: 1s off, 4s on

User calling dispatch group or dispatch console calling user: 2s off, 3s on

Internal user calling internal user:

1s off, 1s on, 1s off, 1s on, 4s off

External user calling internal user: 1s off, 4s on

5

Dispatch switch Release Mode

1. Non-mutual-control mode is adopted between extension users. When either party hangs up, the call circuit is released after 0.3s. The party that hung up is free, and the other party hears a busy tone.

2. For calls between the dispatch console and extensions or public/private network users, the in-system equipment is released under the control of the dispatch console. When the user hangs up first, the dispatch console automatically re-rings that user until the user answers.

3. Calling-party-control mode or non-mutual-control mode is adopted between extension users and public/private network users.

The dispatch console shall have control and dominance over the use of the communication system, and the dispatch console telephone has the highest priority. The dispatch console can proactively establish or tear down calls between certain users, and can call, barge into, or tear down any user's call.

4. During dispatch and conference processes, users who have hung up can be automatically re-rung.

 

Requirements met

6

Extension Functions

Each user can be assigned a level, such as dispatch level, outgoing call level, etc.

a) Extension users can call each other by dialing.

b) Dispatch consoles and users authorized for external calls have direct external line dialing capability.

c) Extension users can be transferred via the dispatcher to public network or private network users.

d) Incoming external calls can be transferred by the dispatch console to any extension user, or external lines can directly call any extension user in the dispatch exchange.

e) Duty phone function supported

 

— Extension user numbering is 1-4 digits, with flexible setting of the leading digit;

— Extension users can be set to different priority and restriction levels;

— Higher-level extensions can barge-in and forcibly disconnect lower-level extensions;

— Extensions can be set as immediate hotline or delayed hotline;

— During an active call, both calling and called parties can transfer the call to another extension or trunk by flashing the hook switch;

— Call forwarding can be set on extensions, including unconditional forwarding, forwarding on busy, and forwarding on no answer;

— Hunt group numbers can be set on extensions;

— Call pickup function;

— Three-party conference function;

— Call waiting function;

— Abbreviated dialing function;

— Conference call function;

IDM User Processing:

1、 Each user can be assigned a dispatch level, outgoing call level, and forwarding conditions and forwarding numbers

2、 Extensions can call dispatch consoles, internal users, external users, wireless group users, user groups, etc.

3、 Incoming external calls can be routed to the default dispatch console or directly to any extension

4、 Extensions can be set as duty phones

5、 Higher-level extensions can barge-in and forcibly disconnect lower-level extensions;

6、 During an active call, both calling and called parties can transfer the call to another extension or trunk by flashing the hook switch;

7、 Call forwarding can be set on extensions, including unconditional forwarding, forwarding on busy, and forwarding on no answer;

8、 Extensions can pick up calls for other extensions

9、 Extensions can participate in group operations

10、              Extensions have call waiting function

7

Maintenance and management of the digital SPC dispatch console

Shall be capable of recording and verifying the dispatcher's name, employee ID, operation permission password, and the time of each login and logout

 

— System information can be displayed via the maintenance terminal, including system data, user levels and data, trunk data, alarm information, and other necessary information;

— Data can be set or modified online via the maintenance terminal, including system data, user levels and data, trunk data, and other necessary data;

— Remote maintenance function;

— Traffic statistics function, with the statistics format to be agreed upon between the manufacturer and the user (optional);

— Call recording function, which records the calling and called numbers, start and end times, and call result (success, busy, timeout no answer, failure) for each call (optional)

 

 

8

Dispatch console interface

 

The dispatch console shall be provided with the following external interfaces:

1) Microphone. In addition to the built-in microphone, an external microphone may be connected. When an external microphone is connected, the built-in microphone is disabled.

2) Loudspeaker. In addition to the built-in speaker, an external power amplifier or powered speaker may be connected. When an external power amplifier or powered speaker is connected, the built-in speaker is disabled.

3) Recording. An external recording interface shall be provided.

 

The left and right handsets of the IDM dispatch console can be connected to IDM intercom terminals.

This terminal supports both telephone mode and wired intercom mode, and is equipped with a gooseneck microphone and built-in speaker. It can also be connected to a headset, and has a speaker output interface, and can dial telephone numbers. It is highly functional.

In wired intercom mode, voice monitoring can be performed in the on-hook state, and conference speaking can be performed in the off-hook state. This requires the switch to set the group to which the terminal belongs to "wired intercom" mode.

Note: Ordinary telephones need to be retrofitted with a wired intercom module.

9

Dispatch console level setting

 

 

Dispatch console operation permission setting:

10

Ring off

(None)

If the dispatch console is in a call and a new incoming call arrives, the dispatch console can perform the ring-off operation, i.e., no ringing during the current call; the ring-off is automatically released after the call ends.

(Satisfied)

11

Failover

(Duty)

e) Extension supports duty phone function

Dispatch console automatically enters failover state upon failure, redirecting all incoming calls of the dispatch console to a designated extension

 

The IDM dispatch console can be set to "Duty" status, allowing all calls to this dispatch console to be forwarded to a designated extension;

Additionally, when the dispatch console is powered off or the software is exited, if the console's services have not been set to "merge" with another dispatch console, all calls to this dispatch console will be redirected to a designated extension;

If a dispatch console is set to "merge" mode, during merging, all calls to this dispatch console will be redirected to the designated dispatch console.

12

Transfer

c) Extension users can be transferred via the dispatch console to users on the public or private network.

d) Incoming external calls can be transferred by the dispatch console to any extension user, or external callers can directly call any extension user in the dispatch system.

 

The dispatch console can transfer incoming calls, enabling the internal or external user currently in conversation with the dispatch console to establish a call with another internal or external user.

The IDM dispatch system can be configured in two modes: extensions cannot directly dial external lines (standard) and extensions can directly dial external lines (non-standard).

Transfers defined by IDM include consultative transfer and blind transfer:

a) Consultative transfer: If party B in conversation with dispatcher A wishes to speak with dispatch console C (or phone D, whether D is internal or external) after the current call ends, dispatcher A can use the transfer function to enable B and C (or D) to successfully connect;

b) Blind transfer: refers to directly connecting the two parties without the dispatch console phone first speaking with the receiving party. The establishment of a hotline between two users can also use "transfer," in which case no conference room is used; this state only requires the dispatch console to establish communication with the first user.

Note: Transfer cannot be used for conference room members such as trunking groups or groups; conference room members can only use the "bridge" command.

 

13

Bridge

(None)

(None)

Refers to connecting two user groups (phone users, user groups, or wireless trunking groups) that have no communication link with the dispatch console, which requires the use of a conference room for the connection;

 

14

Answer

Pickup

 

 

The dispatch console can answer-pickup calls currently ringing on internal lines, external lines, other dispatch consoles, or wireless trunking channels.

15

Hold

(Park)

 

The dispatch console shall support a hold function, capable of holding at least four incoming calls simultaneously.

"Hold" as defined by IDM:

When a new call arrives or when the dispatcher sees another call in the queue that needs attention, the dispatcher can place the current call on hold in the same group's hold queue, thereby freeing the active phone to handle the other call. A dispatch group can hold up to 20 call parties simultaneously.

16

Emergency Call

(Urgent Call)

 

An emergency call number should be configured. When a user makes an emergency call, a ring tone distinctly different from other calls shall be generated, and the dispatch console can answer the emergency call with priority.

The IDM dispatch exchange supports both scenarios of user urgent-calling the dispatch console and the dispatch console urgent-calling a user:

1. User urgent-calls the dispatch group: When a user dials the emergency number of the dispatch group, all dispatch consoles in the group will flash red across the full screen, accompanied by an urgent ring tone and an emergency alarm sound from the loudspeaker; all idle telephones in the group will ring. At this point, lifting any ringing telephone will clear the emergency alarm. The emergency call shall be recorded in the log and subject to voice recording.

2. Dispatch console urgent-calls a user: The dispatcher can use the urgent call function by pressing the "Urgent Call" key under the hotkey and then clicking the target user. The outgoing call is displayed prominently in red, distinguishing it from normal calls. Note: The called telephone will ring with a rapid urgent ring tone.

17

Monitoring

 

 

High-priority dispatch console users with monitoring privileges can monitor the calls of lower-priority users.

18

One-Key Multi-User

(Polling)

 

The dispatch console can map one user key to multiple numbers. If the call to the first number fails, it automatically calls the subsequent numbers. The call waiting interval can be set by the dispatch console. Before the interval elapses, the dispatch console can terminate the current call early and switch to calling the next number. Both sequential polling and single-call selection are supported.

"Polling" as defined by IDM: (standard compliant)

The dispatch console can set a user key as a polling group corresponding to multiple numbers. If the call to the first number fails, it automatically calls the subsequent numbers. The call waiting interval can be set by the dispatch console. If any number answers during the process, polling ends. Before the interval elapses, the dispatch console can terminate the current call early and switch to calling the next number. Both sequential polling and single-call selection are supported.

19

Roll Call

 

The dispatch console can sequentially call pre-configured roll call numbers. Up to 40 roll call numbers can be configured.

"Roll Call" as defined by IDM: (standard compliant)

The dispatch console can sequentially call pre-configured roll call numbers. Up to 10 roll call groups can be configured, with each group containing up to 40 numbers. The roll call function is stored in the function area, and a roll call group can be stored as a user key in the user area. When a roll call group is activated, the console first calls the first number; once the call is connected (indicated on the console interface), the called party hangs up, and the console initiates the next call, continuing in sequence. After the last number has been called, the console prompts to end the roll call or re-call unanswered users. If the call times out or the next number is manually selected, the console calls the next user. The roll call timeout can be pre-configured via the console.

20

Priority level setting function for "group call"

Conference call function

 

1) "Group call" can be assigned priority levels. The dispatching system allows multiple "group calls" to be configured, with each priority level corresponding to only one "group call." A single dispatching console can configure multiple "group calls."

2) The same user may be assigned to group calls of different priority levels. When multiple group calls occur simultaneously, the user is connected to the group call with the highest priority.

3) The dispatching system can initiate multiple "group calls" simultaneously.

a) The dispatching console can call out conference participants via individual call or conference group call, with the ability to add/remove users and perform "roll call."

b) The dispatching console and the conference chair can be two-way users, while conference participants are half/full-duplex call users, with operation control performed by the dispatcher.

c) The dispatching console can exit/rejoin the conference midway (during which the dispatcher no longer controls the conference).

 

The dispatching console can organize conference calls via individual call or group call, including broadcast conferences and multiparty conferences.

— Broadcast conference. The broadcast targets are set by the dispatching console; only the dispatching console can speak, while participants can only listen.

— Multiparty conference. Full-duplex conference in which both internal and external line users can participate. Multiple conference groups can be held simultaneously. The dispatching console can mute, unmute, or disconnect participants, and can also transfer new incoming calls into the conference. If a participant exits the conference early, the dispatching console can re-call them.

User group operations defined by IDM include "individual call," "group call," and "conference."

"Individual call" calls users within a group one by one, such as "roll call" and "polling";

"Group call" rings all users within a group simultaneously, and then connects them to a conference room to answer;

"Conference" includes "intercom" (users control the right to speak), "broadcast conference" (the dispatching console controls the right to speak), and "multiparty conference" (all users can speak freely);

"Intercom" includes "wired intercom" (users' wired terminals can control the duration of the current speech) and "telephone intercom" (each time a telephone user presses the hook switch, that user obtains N seconds of speaking rights.

 

Members can be added or removed at any time during group operations;

When a user belongs to multiple groups, the higher-priority group takes precedence;