I recently saw a SIP terminal controller when I visited a school. The brand is OBT and the model number is OBT-9708.
This product can directly connect 2*10W passive speakers with ordinary audio cable, support stereo constant resistance output, CD sound quality. In addition, it has two network interfaces, which can be connected to WAN as well as LAN.
In addition, it has a 3.97” screen at the top, which can be directly operated by the remote control. The main interface displays information such as terminal ID, terminal IP address, server IP address, date and time etc.
Secondly, the terminal controller has built-in 2.4G Bluetooth module to support the popular wireless Bluetooth earphone on the market, such as Xiaomi, Xiaomi Youth Edition, PLUFY and Jabra. Moreover, it supports the acquisition of tracks from the server, local memory and U disk. The power supply mode is 12V 3A AC adapter. And the installation method is directly fixed to the wall with screws to save space.
The product supports the SIP protocol, which forms a SIP public address system with IP PBX and VOIP telephones. It can be widely used in teaching and training, corporate internal communication, playing background music, fire alarm, paging and emergency announcement.
