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SDES (Session Description Protocol Security Descriptions) for Media Streams is a way to negotiate the key for Secure Real-time Transport Protocol. It has been proposed for standardization to the IETF in July 2006 (see RFC 4568 .)
the SDP's service agility (that is the product and services being offered are hard-coded into the SDP so that new services cause code upgrades) and; hard-wired self-care facilities (no flexibility or consideration of the SDPs users such as language, age, sighted, preferences, etc.).
The SDES protocol transmits the encryption keys in plain text inside SIP+SDP messages. This key exchange protocol is therefore pretty much useless for most users, unless they have a complete control over the SIP signalling system to ensure that the TLS transport protocol is used all the way from the originating to the receiving device.
The Session Description Protocol (SDP) is a format for describing multimedia communication sessions for the purposes of announcement and invitation. [1] Its predominant use is in support of streaming media applications, such as voice over IP (VoIP) and video conferencing .
Semidefinite programming (SDP) is a subfield of mathematical programming concerned with the optimization of a linear objective function (a user-specified function that the user wants to minimize or maximize) over the intersection of the cone of positive semidefinite matrices with an affine space, i.e., a spectrahedron.
The SDP is described in the book Service Design, one of the five books that comprises the core of ITIL. The SDP follows the lifecycle of a service from when it is first suggested as a possibility to when it is finally retired. It is the central reference point for all documentation of a service, so it contains many links to other documents.
Sales decision process is a formalized sales process companies use to manage the decision process behind a sale. SDP “is a defined series of steps you follow as you guide prospects from initial contact to purchase.” [1] This method includes planning specific timelines and milestones at the beginning of a sale, both internally and with the business customer.
A service discovery protocol (SDP) is a network protocol that helps accomplish service discovery. Service discovery requires a common language to allow software agents to make use of one another's services without the need for continuous user intervention.