Session Description Protocol
E544008
Session Description Protocol (SDP) is a format used in multimedia communication systems to describe streaming media sessions for purposes such as session announcement, invitation, and negotiation of media parameters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Session Description Protocol canonical | 9 |
| Session Description Protocol Security Descriptions | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5768153 — 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: Session Description Protocol Context triple: [Interactive Connectivity Establishment, relatedTo, Session Description Protocol]
-
A.
Session Initiation Protocol
Session Initiation Protocol (SIP) is a signaling protocol used to establish, modify, and terminate real-time communication sessions such as voice and video calls over IP networks.
-
B.
SRTP for secure media transport
SRTP for secure media transport is a security protocol that encrypts and authenticates real-time audio and video streams, commonly used in VoIP and WebRTC communications.
-
C.
SIP
SIP is the IATA airport code for Simferopol International Airport, the main air gateway to the Crimean Peninsula.
-
D.
H.323
H.323 is an ITU-T standard that defines protocols for voice, video, and data communication over packet-based networks such as IP.
-
E.
Multiple Stream Registration Protocol
Multiple Stream Registration Protocol (MSRP) is an enhancement to the Stream Reservation Protocol that enables the registration and management of multiple audio/video streams in Time-Sensitive Networking (TSN) Ethernet environments.
- 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: Session Description Protocol Target entity description: Session Description Protocol (SDP) is a format used in multimedia communication systems to describe streaming media sessions for purposes such as session announcement, invitation, and negotiation of media parameters.
-
A.
Session Initiation Protocol
Session Initiation Protocol (SIP) is a signaling protocol used to establish, modify, and terminate real-time communication sessions such as voice and video calls over IP networks.
-
B.
SRTP for secure media transport
SRTP for secure media transport is a security protocol that encrypts and authenticates real-time audio and video streams, commonly used in VoIP and WebRTC communications.
-
C.
SIP
SIP is the IATA airport code for Simferopol International Airport, the main air gateway to the Crimean Peninsula.
-
D.
H.323
H.323 is an ITU-T standard that defines protocols for voice, video, and data communication over packet-based networks such as IP.
-
E.
Multiple Stream Registration Protocol
Multiple Stream Registration Protocol (MSRP) is an enhancement to the Stream Reservation Protocol that enables the registration and management of multiple audio/video streams in Time-Sensitive Networking (TSN) Ethernet environments.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
application-layer protocol
ⓘ
network protocol ⓘ |
| abbreviation | SDP ⓘ |
| associatedWith |
Multicast Session Announcement Protocol
ⓘ
RTP ⓘ RTSP ⓘ Real-time Streaming Protocol ⓘ
linked to:
RTSP
Real-time Transport Protocol ⓘ SAP ⓘ SIP ⓘ
linked to:
Session Initiation Protocol
Session Initiation Protocol ⓘ |
| definedIn | RFC 4566 ⓘ |
| doesNotProvide |
media transport
ⓘ
signaling ⓘ |
| encoding | US-ASCII ⓘ |
| hasDesignGoal |
human readability
ⓘ
machine parseability ⓘ |
| hasField |
a= (session attribute)
ⓘ
b= (bandwidth information) ⓘ c= (connection information) ⓘ e= (email address) ⓘ i= (session information) ⓘ k= (encryption key) ⓘ m= (media name and transport address) ⓘ o= (origin) ⓘ p= (phone number) ⓘ r= (repeat times) ⓘ s= (session name) ⓘ t= (time the session is active) ⓘ u= (URI of description) ⓘ v= (protocol version) ⓘ z= (time zone adjustments) ⓘ |
| hasVersionNumber | 0 ⓘ |
| layer | application layer ⓘ |
| mediaControl | out-of-band ⓘ |
| originallyDefinedIn | RFC 2327 ⓘ |
| standardizedBy |
IETF
ⓘ
linked to:
Internet Engineering Task Force
|
| supports |
IPv4
ⓘ
IPv6 ⓘ codec negotiation ⓘ media format negotiation ⓘ multicast sessions ⓘ multiple media descriptions ⓘ transport protocol negotiation ⓘ unicast sessions ⓘ |
| textBased | true ⓘ |
| usedFor |
describing multimedia communication sessions
ⓘ
negotiation of media parameters ⓘ session announcement ⓘ session invitation ⓘ streaming media session description ⓘ |
| usedIn |
IPTV
ⓘ
Voice over IP ⓘ
linked to:
VoIP
WebRTC ⓘ video conferencing ⓘ |
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: Session Description Protocol Description of subject: Session Description Protocol (SDP) is a format used in multimedia communication systems to describe streaming media sessions for purposes such as session announcement, invitation, and negotiation of media parameters.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Session Description Protocol
linked to: Session Description Protocol