SDP
E544013
SDP (Session Description Protocol) is a format used in multimedia communications to describe streaming sessions for purposes such as session announcement, invitation, and parameter negotiation.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T5768241 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SDP Context triple: [SDES, definedIn, SDP]
-
A.
SDP
SDP is the commonly used abbreviation for the Social Democratic Party, a centrist political party in the United Kingdom founded in 1981.
-
B.
SDP
SDP is a major center-left political party in Finland that advocates social democracy, welfare-state policies, and workers’ rights.
-
C.
SDP
SDP is a major center-left political party in Croatia that advocates social democracy and progressive policies.
-
D.
SDM
SDM refers to a Sub-Divisional Magistrate, a key administrative and executive officer in charge of governance, revenue, and law-and-order functions within a sub-division of a district in India.
-
E.
SDM
SDM is the ICAO airline designator used to identify Rossiya Airlines in international aviation operations.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SDP Target entity description: SDP (Session Description Protocol) is a format used in multimedia communications to describe streaming sessions for purposes such as session announcement, invitation, and parameter negotiation.
-
A.
SDP
SDP is the commonly used abbreviation for the Social Democratic Party, a centrist political party in the United Kingdom founded in 1981.
-
B.
SDP
SDP is a major center-left political party in Finland that advocates social democracy, welfare-state policies, and workers’ rights.
-
C.
SDP
SDP is a major center-left political party in Croatia that advocates social democracy and progressive policies.
-
D.
SDM
SDM refers to a Sub-Divisional Magistrate, a key administrative and executive officer in charge of governance, revenue, and law-and-order functions within a sub-division of a district in India.
-
E.
SDM
SDM is the ICAO airline designator used to identify Rossiya Airlines in international aviation operations.
- F. None of above. chosen
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
IETF standard
ⓘ
network protocol ⓘ |
| abbreviation | SDP ⓘ |
| attributeField | a= ⓘ |
| category | signaling protocol ⓘ |
| dataFormat | text-based ⓘ |
| definedInRFC | RFC 4566 ⓘ |
| defines |
bandwidth information
ⓘ
codecs ⓘ connection information ⓘ media stream parameters ⓘ media types ⓘ session attributes ⓘ session timing ⓘ transport protocols ⓘ |
| designGoal |
media description flexibility
ⓘ
protocol independence ⓘ |
| encoding | UTF-8 ⓘ |
| fullName | Session Description Protocol ⓘ |
| hasLineType |
a=
ⓘ
c= ⓘ m= ⓘ o= ⓘ s= ⓘ t= ⓘ v= ⓘ |
| mediaControl | offer/answer model ⓘ |
| mediaDescriptionField | m= ⓘ |
| originallyDefinedInRFC | RFC 2327 ⓘ |
| originField | o= ⓘ |
| primaryPurpose |
multimedia session negotiation
ⓘ
session description ⓘ |
| relatedSpecification | RFC 3264 ⓘ |
| securityExtension |
DTLS-SRTP
ⓘ
SDES for SRTP ⓘ |
| sessionNameField | s= ⓘ |
| standardizedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| supports |
IPv4
ⓘ
IPv6 ⓘ multicast sessions ⓘ unicast sessions ⓘ |
| timingField | t= ⓘ |
| typicalTransportProtocols |
RTP
ⓘ
UDP ⓘ |
| usedFor |
media session description
ⓘ
parameter negotiation ⓘ session announcement ⓘ session invitation ⓘ |
| usedIn |
Voice over IP
ⓘ
linked to:
VoIP
WebRTC ⓘ streaming media ⓘ video conferencing ⓘ |
| usedWith |
RTSP
ⓘ
SAP ⓘ SIP ⓘ |
| versionField | v= ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SDP Description of subject: SDP (Session Description Protocol) is a format used in multimedia communications to describe streaming sessions for purposes such as session announcement, invitation, and parameter negotiation.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.