The Communication Gateway United Kingdom

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General office

The Communication Gateway
23 Main Road
Naphill
,HP14 4QD
United Kingdom

Phone: +44 1494 372600
Site: http://www.comgw.co.uk

Hardware
Hosted VoIP billing service provider
Internet Fax Service Provider
Internet Telephony Service Provider
Mobile VoIP
Network Service Provider
Voip consulting

Call Back
Call Relay VoIP Solutions
Call Routing VoIP Solutions
Fax To Fax
Hosted VoIP
Installation and Support Services
PC to Phone
Phone To PC
Phone To Phone
SIP VoIP Gateway
System Integration

Not data

SIPMarket

TATAMAX Limited

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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