Express TeleService United States

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General office

Express TeleService
35 Corporate Drive, 4th Floor
Burlington
MA ,1773
United States

Phone: +1 781-259-8466
Site: http://www.etservice.net

Contact Person

Olga Malakhovskaia / International Manager
Phone: +1 781-259-8466

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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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efoneX is a Next Generation Internet Telephony Provider, introducing to the Internet community worldwide innovative voice and advanced real time communication services over the public Internet.