By the deployment of SPON IP endpoints in transportation places , you can realize voice paging , audio or visual alerting and emergency notification. IP based solution is with adva...
Changsha SPON Communication Technology Co., LTD was established in 2004 with over 20000 Square meter workplace . It is a national high-tech enterprise which has own core intellectual property and innovative research & development capabilities. We have rich experience in IP video and audio products and PA system products.