Appia Communications United States

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Appia Communications
210 N Tucker, Suite 560
St. Louis
MO ,63101
United States

Phone: 8772774297
Phone: 2319290970
Site: http://www.appiaservices.com

Contact Person

Matt Cowall / Communications Manager
Phone: 2319290970
Phone: 2319290970

Internet Telephony Service Provider
Internet VoIP and Video Conferencing Service Provider
Network Service Provider
Voip consulting

Call Relay VoIP Solutions
Call Routing VoIP Solutions
Collaboration
Data Conferencing
Installation and Support Services
System Integration
Voice and Video Conferencing

Cisco Systems

None

Riva Communications LLC Rivatel

Appia Communications

Providers in database: 6433

SDP Protocols Are Used To Transmit Media Session Information

In 1998, the Internet Engineering Task Force (IETF) published the specification for a Session Description Protocol or SDP as a format that describes parameters for streaming media. The original IETF Proposed Standard was updated in 2006 as RFC 4566. Although the SDP was created as a feature of Session Announcement Protocol (SAP), it can be used with Real-time Transport Protocol, Real-time Streaming Protocol (RTSP), and Session Initiation Protocol, as well as a standalone protocol. Parameter negotiation, session announcement and session invitation are included in the descriptive sessions from the SDP protocol. Rather than transmit data like other types of protocols, an SDP negotiates between media type endpoints, format and properties involved. A session begins when a connection is established, and the session is terminated only after every endpoint is no longer participating.

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