Voice Services: The system supports the following voice services:
Service | Description |
|---|---|
Private Call | Private calls (also called P2P calls) between trunking users, between trunking users and enterprise dispatching console (eDC) users, or between eDC users. Private calls are P2P full-duplex calls. |
12.2k AMR Voice | 12.2k AMR Voice uses an Adaptive Multirate (AMR) for transmission at 12.2 kbit/s on the user plane over the air interface. Packets transmitted over the air interface have no IP or RTP headers, reducing the overhead and improving the coverage. |
Trunking Group Call | A group call is a half-duplex point-to-multipoint call between the eDC and multiple mobile stations. The two parties can communicate without pickup. |
Emergency Call | An emergency call has the highest priority and helps the user quickly report information to a pre-defined user or group without delay. |
Half-duplex Point to Point Voice Call | Half-duplex P2P voice calls are allowed between trunking users, between trunking users and eDC users, or between eDC users. The two parties can communicate without pickup. |
PoC Service | PoC is a trunking solution in the application layer and irrelevant to the radio access technology (RAT) adopted by terminals. A terminal can perform PoC services as long as it can access the PoC trunking server but the performance is poorer than that provided by the Witen system. |
Group Call Scanning | Users can enable the group call scanning function to listen to other groups besides their own groups or disable the function to cancel listening to other groups. |
Call Floor Release | The speaker can release the floor in a group call. |
Floor Pre-emption | Users in a group call can preempt the floor based on priorities. |
Late Entry | Delayed participation into a group call is allowed for members failing to access a call. |
Forced Release | An authorized eDC can forcedly release an on-going P2P call between common users or a group call. |
Forced Preemption | An authorized eDC can preempt the floor of a user in a P2P call and speak to the other party of the call. |
Time-Limit Call | Users can specify the duration for the floor of a group call, a private call, or a call between an enterprise network and a PDN. |
Group and User Status Display | With this feature, the dispatcher can check whether a user is online, idle, in a P2P call, or is listening to or speaking in a group call. |
Alias Display of Group and User | A terminal displays the group name or speaker name during a call. |
Broadcast Call | A point-to-multipoint (P2MP) call initiated by the eDC. Broadcast group calls include network-wide broadcast group calls (members in the group calls are terminals in the system) and area-specific broadcast group calls (the members in the group calls are terminals in a specified area). |
Dynamic Regrouping | The system administrator can dynamically group the group calls or users on the eDC, and one or more users can be added to or removed from a group call. |
Call Forwarding | An incoming P2P call of a user can be forwarded to another telephone number. |
Call Data Record | Calling details are recorded for group voice calls, P2P voice calls, P2P video calls, video uploading, or video distribution. |
Temporary Group Call | The dispatcher can initiate a temporary call on multiple terminals or static groups. After the temporary call is terminated, the temporary call group configurations are automatically deleted. |
Talking Party Identification | The called party (eDC or terminal) can display the number of the calling party upon receiving a group or P2P call, or a short or multimedia message. |
Name Cloud Query | After receiving a call from a number not saved locally, the user can query the calling number on the eUDC to determine whether the calling number can be identified. |
Barring of Incoming and Outgoing Calls | A user can be barred from initiating a call to or receiving a call from a specific number or users in a specific number range, or be barred from initiating or receiving any calls. |
Group Folder | A group category is a collection of static groups, through which groups can be effectively managed and used. |
Hidden group | You can set a group to which a terminal user belongs to be invisible for the user. This group is not displayed on the terminal interface and the user cannot initiate a group call in the group, but can receive and answer calls initiated in this group. |
Terminal created group | Authorized users can create, delete, and edit groups on terminals. |
VoLTE Interconnection | By interworking with the IMS network, eNodeB, eAPP, and VoLTE terminals, the eCNS280 allocates IP addresses for wireless VoLTE terminals on the entire network so that VoLTE terminals can access the enterprise network. |
Caller Number Hidden | The speaker can hide its number from the listener for security. |
Abbreviated Dialing Service | After a terminal user enters a short number, the eMDC automatically complements the short number as the number used in the Witen system according to the saved abbreviated dialing rule. |
Missed Call Remind Service on busying | When a terminal user is answering a P2P call and cannot answer another incoming call, the system sends a short message to notify the terminal user of the missed call. |
Discreet Listening | The dispatcher can listen to target calls without being detected. Discreet listening to group calls and P2P calls is supported. |
Console Patching | A dispatcher can merge multiple static groups into a patch group, in which any static group can hear the dispatcher and other static groups. |
Attendant Forwarding | After user A establishes a P2P call with the eDC, a dispatcher can use this feature to establish a call between user A and user B directly. |
Multiple call on-hold | An eDC can receive multiple P2P calls concurrently. The dispatcher can answer any call as required. |
Ambience Listening | A terminal can send the eDC ambient sound without sending the user any prompt to or response from the terminal user. |
