Encoding Protocol
Multimedia Protocol: ITU-T、H.323、SIP
Dual stream protocol: H.239
Audio Encoding and Decoding Protocol: G.711A,G.711U,G.722，G.7221，G.722.1.C,G.723，iLBC，AAC，OPUS
Video codec protocol: H.264 (supporting the highest High profile)

Video Features
● Video resolution: QCIF、CIF、4CIF、480P、D1、720P、1080P25、1080P30、1080P50、1080P60
Static graphics and text: XGA, HD 720P, 640 * 480, 1280 * 1024, 1080P (1-60 frames)
H.239 digital dual stream technology: 1080P static dual stream and active dual stream network auxiliary stream
● Support video frequency division; Supports multiple screens, with a maximum of 16 screens per screen

Audio characteristics
● Support voice stimulation and screen polling
Echo cancellation (AEC), noise suppression (ANS), automatic gain control (AGC)

Meeting characteristics
● Multiple screen layouts, up to 16 screens per meeting, supporting automatic screen splitting
Subtitles: Chinese and English subtitles
● Participation methods: One click membership, one click withdrawal, invitation to join
● Usability: Two shortcut buttons, one click to join and one click to grab microphone for easy use, no need for a dedicated network administrator

Encryption security
● Meeting join password, chairman password, administrator password, user password
● Supports H.265 signaling and media stream encryption, AES encryption