H.324 multimedia over circuit-switched networks
E920741
H.324 multimedia over circuit-switched networks is an ITU-T standard that enables real-time audio, video, and data communication over traditional circuit-switched telephone networks, such as PSTN and ISDN.
All labels observed (3)
| Label | Occurrences |
|---|---|
| H.324 multimedia over circuit-switched networks canonical | 2 |
| H.223 multiplexing protocol | 1 |
| H.324 systems | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11352285 — 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: H.324 multimedia over circuit-switched networks Context triple: [H.263, usedWith, H.324 multimedia over circuit-switched networks]
-
A.
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.
-
B.
H.235 security framework
The H.235 security framework is an ITU-T standard that defines authentication, integrity, and encryption mechanisms to secure H.323-based multimedia communication over packet networks.
-
C.
T.120 for data conferencing
T.120 for data conferencing is an ITU-T standard protocol suite that enables real-time, multi-user data collaboration features such as application sharing, whiteboarding, and file transfer in conferencing applications.
-
D.
H.261
H.261 is an early international video compression standard developed by the ITU-T for real-time video conferencing over ISDN and similar networks.
-
E.
H.263
H.263 is a video compression standard developed primarily for low-bitrate communication such as video conferencing and early internet video applications.
- 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: H.324 multimedia over circuit-switched networks Target entity description: H.324 multimedia over circuit-switched networks is an ITU-T standard that enables real-time audio, video, and data communication over traditional circuit-switched telephone networks, such as PSTN and ISDN.
-
A.
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.
-
B.
H.235 security framework
The H.235 security framework is an ITU-T standard that defines authentication, integrity, and encryption mechanisms to secure H.323-based multimedia communication over packet networks.
-
C.
T.120 for data conferencing
T.120 for data conferencing is an ITU-T standard protocol suite that enables real-time, multi-user data collaboration features such as application sharing, whiteboarding, and file transfer in conferencing applications.
-
D.
H.261
H.261 is an early international video compression standard developed by the ITU-T for real-time video conferencing over ISDN and similar networks.
-
E.
H.263
H.263 is a video compression standard developed primarily for low-bitrate communication such as video conferencing and early internet video applications.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T recommendation
ⓘ
multimedia communication standard ⓘ |
| aimsTo | enable multimedia services on existing telephone infrastructure ⓘ |
| applicationDomain |
multimedia over PSTN
ⓘ
videotelephony ⓘ |
| belongsToSeries | H-series recommendations ⓘ |
| category | telecommunication standard ⓘ |
| compatibleWith |
integrated services digital network
ⓘ
public switched telephone network ⓘ |
| defines |
call control procedures
ⓘ
error control mechanisms ⓘ media multiplexing ⓘ terminal requirements ⓘ |
| enables |
real-time audio communication
ⓘ
real-time data communication ⓘ real-time video communication ⓘ |
| focusesOn | low bit-rate multimedia communication ⓘ |
| fullName | H.324 multimedia over circuit-switched networks ⓘ |
| governingBody | International Telecommunication Union ⓘ |
| intendedFor | legacy telephone networks ⓘ |
| mediaTypes |
audio
ⓘ
data ⓘ video ⓘ |
| networkType | circuit-switched ⓘ |
| operatesOver |
ISDN
ⓘ
PSTN ⓘ
linked to:
Public Switched Telephone Network
circuit-switched networks ⓘ |
| relatedTo |
H.320
ⓘ
H.323 ⓘ |
| scope | end-to-end multimedia communication over circuit-switched networks ⓘ |
| sector |
ITU-T
ⓘ
linked to:
ITU Telecommunication Standardization Sector
|
| standardizedBy |
ITU-T
ⓘ
linked to:
ITU Telecommunication Standardization Sector
|
| standardType | communication protocol specification ⓘ |
| supports |
audio codecs
ⓘ
data protocols ⓘ multimedia conferencing ⓘ video codecs ⓘ |
| supportsMode |
full-duplex communication
ⓘ
point-to-point communication ⓘ |
| transportLayer | 64 kbit/s circuit-switched channels ⓘ |
| uses |
H.223 multiplexing protocol
ⓘ
H.245 control protocol ⓘ
linked to:
H.245
H.324 Annexes for extensions ⓘ |
| usesChannel | circuit-switched bearer channels ⓘ |
| usesSignaling | circuit-switched call setup signaling ⓘ |
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: H.324 multimedia over circuit-switched networks Description of subject: H.324 multimedia over circuit-switched networks is an ITU-T standard that enables real-time audio, video, and data communication over traditional circuit-switched telephone networks, such as PSTN and ISDN.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
H.324 multimedia over circuit-switched networks
subject linked to:
H.324 multimedia over circuit-switched networks
linked to: H.324 multimedia over circuit-switched networks