5ESS switch
E83730
Class 5 telephone switch
digital telecommunications switching system
electronic switching system
telephone exchange
The 5ESS switch is a digital telecommunications switching system widely deployed by telephone companies to route voice and data traffic in public switched telephone networks.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| 1ESS switch | 1 |
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Class 5 telephone switch
ⓘ
digital telecommunications switching system ⓘ electronic switching system ⓘ telephone exchange ⓘ |
| architecture | modular ⓘ |
| commercialDeploymentStart | 1982 ⓘ |
| controlProcessor | administrative module ⓘ |
| developer |
Bell Telephone Laboratories
ⓘ
surface form:
AT&T Bell Labs
Bell Telephone Laboratories ⓘ
surface form:
Bell Laboratories
|
| hasComponent |
administrative module
ⓘ
communications module ⓘ input/output controller ⓘ switching module ⓘ |
| introduced | 1982 ⓘ |
| manufacturer | Western Electric ⓘ |
| notableFeature |
high reliability for carrier-grade telephony
ⓘ
support for advanced custom calling features ⓘ |
| operatingSystem | proprietary 5ESS software ⓘ |
| predecessor |
1AESS switch
ⓘ
5ESS switch self-linksurface differs ⓘ
surface form:
1ESS switch
|
| successor | AT&T 4ESS switch in higher-class roles ⓘ |
| supportsLineTypes |
analog subscriber lines
ⓘ
digital subscriber lines ⓘ |
| supportsService |
CLASS features
ⓘ
Centrex ⓘ POTS (Plain Old Telephone Service) ⓘ
surface form:
Custom Local Area Signaling Services
ISDN ⓘ Plain Old Telephone Service ⓘ call forwarding ⓘ call waiting ⓘ caller ID ⓘ |
| supportsSignaling |
SS7
ⓘ
Signaling System No. 7 ⓘ in-band signaling ⓘ |
| supportsTrunks |
E1
ⓘ
T1 ⓘ digital carrier trunks ⓘ |
| switchingFabric | time-space-time architecture ⓘ |
| technology | digital time-division switching ⓘ |
| usedBy |
AT&T
ⓘ
incumbent local exchange carriers ⓘ regional Bell operating companies ⓘ |
| usedFor |
local exchange switching
ⓘ
routing data traffic ⓘ routing voice traffic ⓘ toll switching ⓘ |
| usedIn | public switched telephone network ⓘ |
| usedInCountry |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
various international markets ⓘ |
| vendorDesignation | 5ESS-2000 in later releases ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
1ESS switch