ProPTT2 system technology.
PTT GW is a interface with PTT Client and has a number of PTT service senario.
Relay has PTT channel information to relay PTT packets. When PTT is locked, Relay broadcasts PTT packes to each clients.
PTT system need to have provisioning feature for servers and clients.
The key features are authentication and loadbalancing of PTT G/W.
Relay system support audio/video PTT packet relay.
VideoSharing system support video packet relay.
Recording system support saving for PTT packets.
External system can be integrated with PTT system with OepnAPI. (link)
PTT system support plug-in architecture. A customer can extend PTT system by adding the plug-in.