Sopec AG Liechtenstein

Sopec Webtel

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General office

Sopec AG
P.O.B. 304
Ruggell
,9491
Liechtenstein

Phone: +41-793 276 032
Site: http://www.sopec.net

Contact Person

Gernot Laengle / Managing Director
Phone: +41-793 276 032

Hardware
Hosted VoIP billing service provider
International VoIP Wholesale Provider
Internet Telephony Service Provider

IP devices
Phone To PC

VocalTec

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VoIP Providers in Liechtenstein

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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