SS7
E409008
SS7 (Signaling System No. 7) is a global telecommunications signaling protocol suite used to set up and manage telephone calls, SMS, and other network services across public switched telephone networks.
All labels observed (4)
| Label | Occurrences |
|---|---|
| SS7 canonical | 5 |
| Common Channel Signaling System 7 | 1 |
| Signaling System No. 6 | 1 |
| Transaction Capabilities Application Part | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4031819 — 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: SS7 Context triple: [5ESS switch, supportsSignaling, SS7]
-
A.
GSM-R
GSM-R is a digital radio communication system used across European railways to provide secure voice and data links between trains and railway control centers.
-
B.
GSM core network
The GSM core network is the central backbone of GSM mobile systems, handling key functions such as switching, mobility management, authentication, and interconnection with other networks.
-
C.
POTS (Plain Old Telephone Service)
POTS (Plain Old Telephone Service) is the traditional analog voice telephone service that formed the basis of the public switched telephone network for most of the 20th century.
-
D.
GSM
GSM is the common abbreviation for Great St Mary’s Church, the historic University Church located in the center of Cambridge, England.
-
E.
GSM
GSM is a second-generation (2G) digital mobile communication standard that became the global foundation for cellular voice and basic data services.
- 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: SS7 Target entity description: SS7 (Signaling System No. 7) is a global telecommunications signaling protocol suite used to set up and manage telephone calls, SMS, and other network services across public switched telephone networks.
-
A.
GSM-R
GSM-R is a digital radio communication system used across European railways to provide secure voice and data links between trains and railway control centers.
-
B.
GSM core network
The GSM core network is the central backbone of GSM mobile systems, handling key functions such as switching, mobility management, authentication, and interconnection with other networks.
-
C.
POTS (Plain Old Telephone Service)
POTS (Plain Old Telephone Service) is the traditional analog voice telephone service that formed the basis of the public switched telephone network for most of the 20th century.
-
D.
GSM
GSM is the common abbreviation for Great St Mary’s Church, the historic University Church located in the center of Cambridge, England.
-
E.
GSM
GSM is a second-generation (2G) digital mobile communication standard that became the global foundation for cellular voice and basic data services.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
ITU-T recommendation
ⓘ
signaling protocol suite ⓘ telecommunications protocol ⓘ |
| abbreviationFor | Signaling System No. 7 ⓘ |
| alsoKnownAs |
C7
ⓘ
CCSS7 ⓘ Common Channel Signaling System 7 ⓘ
linked to:
SS7
|
| architectureType | common channel signaling ⓘ |
| developedBy | International Telecommunication Union ⓘ |
| enables | international roaming for mobile subscribers ⓘ |
| fullName | Signaling System No. 7 ⓘ |
| includesComponent |
ISDN User Part
ⓘ
MTP Level 1 ⓘ MTP Level 2 ⓘ MTP Level 3 ⓘ Mobile Application Part ⓘ Operations, Maintenance and Administration Part ⓘ Signaling Connection Control Part ⓘ
linked to:
Signaling System No. 7
Transaction Capabilities Application Part ⓘ
linked to:
SS7
|
| introducedInDecade | 1970s ⓘ |
| layeredOn | Message Transfer Part ⓘ |
| mappedOverIPBy | SIGTRAN ⓘ |
| partOfSeries | ITU-T Q.700-series recommendations ⓘ |
| predecessor |
Signaling System No. 6
ⓘ
linked to:
SS7
|
| protocolLayer |
application layer
ⓘ
network layer ⓘ transport layer ⓘ |
| securityProperty |
assumes trusted network perimeter
ⓘ
lacks strong authentication ⓘ |
| signalingType | out-of-band signaling ⓘ |
| standardizedBy |
ITU-T
ⓘ
linked to:
ITU Telecommunication Standardization Sector
|
| successorProtocolFamily | SIGTRAN ⓘ |
| supportsService |
SMS
ⓘ
call forwarding ⓘ caller ID ⓘ prepaid calling ⓘ toll-free number translation ⓘ |
| usedFor |
call routing
ⓘ
call setup ⓘ call teardown ⓘ intelligent network services ⓘ number translation ⓘ roaming management ⓘ short message service signaling ⓘ supplementary services signaling ⓘ |
| usedIn |
mobile telephone networks
ⓘ
public switched telephone network ⓘ
linked to:
Public Switched Telephone Network
|
| usesAddressingScheme | point codes ⓘ |
| usesSignalingLinkType | time-division multiplexed channels ⓘ |
| vulnerableTo |
SMS interception
ⓘ
call interception ⓘ fraudulent call and SMS redirection ⓘ location tracking attacks ⓘ |
| widelyDeployedIn | global telecommunication networks ⓘ |
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: SS7 Description of subject: SS7 (Signaling System No. 7) is a global telecommunications signaling protocol suite used to set up and manage telephone calls, SMS, and other network services across public switched telephone networks.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SS7
linked to: SS7
linked to: SS7