Service Overview; Voice Trunking Services - Huawei eMDC610 Product Description

10.1 Voice Trunking Services

No. Service
1 PTP call
2 Group call
3 Emergency call
4 Group scan
5 Floor preemption
Forced call release
6
by the dispatcher
7 Time-limited call
8 Broadcast call
Incoming/Outgoin
9
g call barring
Interconnection
and interworking
10
of different
systems
Issue 04 (2014-08-06)
10
Description
PTP calls, or private calls, can be made between terminal users or between a
terminal user and a dispatching console user. PTP calls are full-duplex
communications. Only the two parties who participate in the PTP call can
hear each other.
Group calls are made between several terminals or between terminals and a
dispatching console. Group calls are half-duplex point-to-multipoint
communications.
Emergency calls are special calls with the highest priority, allowing
information to reach the called party within the shortest time.
Group scan is used to search for groups for listening.
During a group call, a higher-priority user can get the call floor from a
lower-priority user.
An authorized dispatching console can forcefully release a PTP call.
The duration of a floor in a group call, a PTP call, or a call connected to a
PSTN user is configurable. When the time expires, a message will be
displayed.
Broadcast calls are point-to-multipoint calls made by a dispatching console to
all members in a system.
Incoming calls or outgoing calls (including the interworking gateway
numbers) made to or from a user can be barred. Incoming/Outgoing call
barring affects only PTP calls.
Users in a private network can make and receive PTP calls to and from
PSTN/PBX users and PLMN users, group calls to TETRA users and external
350 MHz ultra short wave stations.
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eLTE3.1 Dispatch Platform
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