AddPac Technology Radio over IP solution is an IP extension PTT group call service solution for radio network environments such as existing radio device network, for example, Motorola radio, etc.
The standard SIP VoIP signaling protocol based AddPac RoIP PTT group call solution is composed of IPNext2000, AP-PTS3000 PTT server, LMR(Land-to-Mobile Radio) gateways for radio extension, PTT IP phone, and network management system NMS (Network Management System).
AddPac RoIP group call solution is designed on the basis of IP network to support 1:1 and PTT group call service in any places. It allows saving communication costs with VoIP technology. The main advantage of this device is that it supports radio device network function so that user can maintain existing radio device network system and merits. It also supports group call service by expanding the radio device network coverage to worldwide VoIP network.
It is designed to expand wire/wireless PTT service users by increasing the number of PTT server. It uses the verified standard VoIP signaling system so that it has both excellent compatibility and scalability.
SIP Message Flow for RoIP Service (Register)
SIP Message Flow for RoIP Service (Flow Control : Push-to-Talk)
Radio over IP (RoIP) Product List
Network Diagram
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