ASK VoIP Ltd. United Kingdom

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General office

ASK VoIP Ltd.
London
London
UK ,W1J 6HL
United Kingdom

Phone: 4402081445399
Site: http://ask-voip.com

International VoIP Wholesale Provider
Network Service Provider
Voip Termination ISP

H.323 VoIP Gateway
Termination

Cisco Systems
Mera

Ultravox Telecom

InTechnology

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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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Lensol Systems Ltd., S.A.

"Lensol Systems" is the young, effectively developing company having wide experience of realization of the terminal equipment and the software for the organization of communication systems with application of technology of packages switching (VoIP). Its o