A protocol for the transmission of call management and control signals in packet-based networks using H.323 equipment. The H.245 specification is used in audio, video, and data transmissions, as well as in voice over IP (VoIP). 

Media Gateway Control Protocol (MGCP), also known as H.248 and Megaco, is a standard protocol for handling the signaling and session management needed during a multimedia conference. 

H.264/MPEG-4 Part 10 or AVC (Advanced Video Coding) is a video compression format that is currently one of the most commonly used formats for the recording, compression, and distribution of video content.

High Efficiency Video Coding (HEVC), also known as H.265 is a successor to Advanced Video Coding (AVC), also known as H.264, which is one of the compression schemes used by Blu-ray. It is the latest generation video compression standard started with an idea of offering the same level of picture quality as AVC, but with better compression so that there is less data to deal with. HEVC provides superior video quality and up to twice the data compression as the previous standard.

A standard approved by the International Telecommunication Union (ITU) in 1996 to promote compatibility in videoconference transmissions over IP networks. 

H.323 is an International Telecommunication Union (ITU) standard that defines the protocols to provide audio-visual communication sessions on any packet network. H.323 was originally promoted as a way to provide consistency in audio, video and data packet transmissions in the event that a local area network (LAN) did not provide guaranteed service quality (QoS). It is widely implemented by voice and videoconferencing equipment manufacturers, is used within various Internet real-time applications such as GnuGK and NetMeeting and is widely deployed worldwide by service providers and enterprises for both voice and video services over IP networks.

H3C Certified Internetworking Expert (H3CIE) by H3C

H3C Certified Network Engineer (H3CNE) by H3C

H3C Certified Specialist For MPLS (H3CS) by H3C

H3C Certified Senior Engineer for Routing & Switching (H3CSE-Routing&Switching) by H3C

H3C Certified Senior Engineer for Security (H3CSE-Security) by H3C

H3C Certified Senior Engineer for Storage (H3CSE-Storage) by H3C

H3C Certified Senior Engineer for Video (H3CSE-Video) by H3C

H3C Certified Senior Engineer for Voice (H3CSE-Voice) by H3C

H3C Certified Troubleshooting Expert (H3CTE) by H3C

Hack is an open source programming language derived from PHP for HipHop Virutal Machine (HHVM). Created by Facebook as a dialect of PHP, hack possess both static typing and dynamic typing functions, while also supplementing additional features such as generics and type aliasing.