Interworking
Applications between China Mobile and intercom and PDT cluster intercom
China Mobile's and intercom are an intercom service based on China Mobile's 4G network, also known as POT Over Cellular. PTT is a communication mode that we use in Push To Talk in the walkie-talkie communication system.
We all have the experience of using the walkie-talkie. By pressing and holding the walkie-talkie button, we can communicate with all members on the same channel. China Mobile and Intercom have ported such a way to their mobile terminals and used their existing 4G network to implement the functions of the walkie-talkie.
And intercom has significant advantages
Use 4G network is not limited by communication distance
No need to build a proprietary network base station using existing 4G networks
Can carry multimedia services and have a good combination with the Internet
Low terminal cost, intelligent, and many business functions
Aiming at the above various functional advantages and intercoms widely used in local projects, it is often a supplement to the existing 350M PDT cluster intercom network . It is applied to the 350M cluster coverage edge area, auxiliary police, and large security activities.
Due to the particularity of the PDT cluster system, it is impossible to be replaced in a short time. The PDT cluster has dedicated frequency allocation, extremely low on-delay, network access and off-network communication modes, and extremely high security and security. Sex , let and intercom completely replace the PDT cluster system is impossible.
So it is very important to realize the interconnection and interoperability between the two systems. On the one hand, the core business capability of the cluster network is guaranteed, and on the other hand, the cluster intercom ability is rapidly and cost-effectively expanded . However, due to the particularity of the PDT cluster, this is also a problem faced by the current and intercom projects in the industry.
Desit PAG2020 Interconnection Gateway solves the problem of interconnection and interoperability between the two systems. Coordination and intercom projects are rapidly advancing.
Desit PAG2020 Interconnect Gateway Advantage
Do not change the two system structures and usage habits
Non-docking and intercom protocol layer (free development)
Do not dock PDT cluster protocol layer (free development)
Only the terminals of the docking and intercom and PDT clusters, one set of intercommunication only needs one system to take out one terminal.
Professional equipment operation is reliable, two-way intercom parameters can be adjusted
No noise, no loss of words, little delay
Plug and play, rapid deployment
Introduction to the use of the intercom interconnect gateway
First understand the customer needs, and confirm with the customer the number of channels docked. For example, a city auxiliary police equipment and intercom, but the emergency auxiliary police can switch to the intercommunication channel and call the person using the PDT walkie-talkie . For this application need.
Prepare one and intercom terminal.
The customer provides a PDT cluster walkie-talkie. Such as the use of Haineng PD780 in this program
The intercom terminal and the Hytera PD780 walkie-talkie will be connected to the Dessert PAG2020 interconnection gateway. (The connection requires a dedicated custom cable)
The test call is carried out, and the parameters of the Dessert PAG2020 interworking gateway are adjusted in the background to debug the voice quality, call triggering and voice delay to a suitable state.
The project is completed and successfully accepted. No development during the whole process, solve problems within one day, and quickly advance the progress of the project. The implementation and intercom are interconnected with the 350M PDT cluster.
Similarly, you can also use the Dessert Interconnection Gateway or the intercom network to realize the interconnection of 350M PDT clusters in different regions. #FormatImgID_8#
How Interconnect Gateway works
(1) The PDT digital trunking system initiates a call. The gateway accesses the private network intercom car, and the handset automatically obtains the call state, and simultaneously initiates a public network PoC soft intercom call, and forwards the voice data to the public network PoC soft. The intercom group realizes real-time voice transmission of the private network to the public network PoC soft intercom;
(2) The public network PoC soft intercom initiates the call, and the gateway detects the PoC soft intercom to initiate the call state through the soft intercom internal signaling, and simultaneously initiates the private network call, and forwards the voice data to the private network group through the private network vehicle. Group, realizing real-time voice transmission of PoC soft intercom to private network;
(3) After the above steps, the interconnection and intercommunication of the two networks is realized, and the seamless connection is achieved.
Project Advantages of Desit Interconnect Gateway
Whether it is China Mobile's and intercom system or 350M PDT cluster system, in order to ensure the security and stability of the system are relatively closed systems, the compatibility of the third-party protocols of the two systems is very complicated, and this complexity is often Not only depends on the technical level, but also faces great resistance to business coordination and communication.
The use of Desit's and intercom intercommunication gateways directly realizes the interconnection and interoperability of two isolated cluster systems without changing the system configuration of either party and without the development of any interface protocol. Strive for time for project advancement so that the project can land as early as possible.
Implementation site of a city bureau cluster interoperability project
to sum up
And the intercom is very convenient for the user's application and selection, with Desit's and intercom gateways, to help China Mobile and intercom to improve product solutions, more competitive for industry customers.
The Plate-Fin Heat Exchanger can realize air-air, air-water, air-oil, refrigerant-air, and other fluid medium heat exchange processes. The tube&Flat fin heat exchanger can realize the air-water, air-air fluid medium heat exchange process, and the cold plate heat exchanger can realize the water cooling cycle refrigeration process.
