VoIP protocols

voice-over-IP communications protocol

protocol for delivering audio and video over IP networks

networking protocol for real-time communication and data synchronization

H.323 is a recommendation from the ITU Telecommunication Standardization Sector (ITU-T) that defines the protocols to provide audio-visual communication sessions on any packet network. The H.323 standard addresses call signaling and control, multimedia transport and control, and bandwidth control for point-to-point and multi-point conferences.

sister protocol of the Real-time Transport Protocol that provides control information

signaling and call control communications protocol used in VoIP systems

distributed protocol for telephony and instant messaging

The Gateway Control Protocol (Megaco, H.248) is an implementation of the media gateway control protocol architecture for providing telecommunication services across a converged internetwork consisting of the traditional public switched telephone network (PSTN) and modern packet networks, such as the Internet. H.248 is the designation of the recommendations developed by the ITU Telecommunication Standardization Sector (ITU-T) and Megaco is a contraction of media gateway control protocol used by the earliest specifications by the Internet Engineering Task Force (IETF). The standard published in

computer network protocol

VoiceXML (VXML) is a digital document standard for specifying interactive media and voice dialogs between humans and computers. It is used for developing audio and voice response applications, such as banking systems and automated customer service portals. VoiceXML applications are developed and deployed in a manner analogous to how a web browser interprets and visually renders the Hypertext Markup Language (HTML) it receives from a web server. VoiceXML documents are interpreted by a voice browser and in common deployment architectures, users interact with voice browsers via the public switche

computer network protocol

proprietary network terminal control protocol, originally developed by Selsius Systems, which was then acquired by Cisco

communications protocol

T.38 is an ITU recommendation for allowing transmission of fax over IP networks (FoIP) in real time.

VOIP and streaming media service based on the Internet via SIP protocol

UNIStim (or Unified Networks IP Stimulus) is a deprecated Telecommunications protocol developed by Nortel (now acquired by Avaya) for IP Phone (terminals and soft phones) and IP PBX communications.

computer network protocol