https://www.itctech.com.cn/
Home - Guangdong itc | Audiovisual System Solution
Guangdong Baolun Electronics Co., Ltd. (itc) is engaged in all-digital conference system, paperless conference system, video conference system, public address...
audiovisual systemguangdongitcsolution
https://www.itu.int/rec/T-REC-H.242/en
H.242 : System for establishing communication between audiovisual terminals using digital channels...