List of switches
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This is intended to be a list of the more common central office (telephone company operated) phone switches. This list is nowhere near complete. Many British and non-North American switches are missing.
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Alcatel
- E10 Five
- System 12
- System 12 Remote Switching Unit (RSU)
Automatic Electric
- 32A42
- 32A44
- 35E97
- 370A
- 370B
- 375A
- 375B
- 385A
- 385B
- C1-EAX
- CXP5
- CXP5A
- EAX1
- EAX2
- EAX3
- EAX5
- ESU 3072 Line
- FW1
- GRD3-EAX
- GTD5
- GTD5-EAX
- XPT No. 1
Avaya
- INDeX
DSC Communications Corp.
- DEX 400
- DEX 600E
- DEX 600SC
Ericsson
- AGF
- AKE
- AR10
- ARF10
- ARF102
- ARK
- ARM20
- ARM 202
- ATE
- ATE-NB
- ATE-VB
- AXE 10
- AXE 10 Remote
- AXE Local 7
- AXE Transgate
- AXE810
- MD110
- NMT450
- NMT900
Fujitsu
- C140
- C460
- FETEX 100
- FETEX 150
- FETEX 150 Local
- FETEX 150 Toll
ITT
- 1210
- 7J
- 7X2
- 7X3
- 7XB
- A1
- A1-SPC
- CRX
- CSX
- K60
- K1040
- Metaconda
- PC32B
- Pentaconda
- Relaymatic
- TCS5
Liech
- All Relay
- CX 2
- CX 6
- CX 90
- LXP-3
- LXP-4
Mitel
- GX5000L
- GX5000S
Motorola
- EMX2500
- EMX4
- EMX5000
NEC
- C410
- C460
- NC10
- NC23
- NC23SE
- NC230
- NCA20
- NCX23
- ND10A
- ND10B
- ND20A
- ND20B
- ND20S
- NEAX-61
- NEAX-61E
- NEAX-61E Remote
- NESXS
North Electric
- CS100
- CS200
- CX30
- CX60
- CX200
- CX1000
- DSS1
- DSS2
- ETS4
- NE-1ESS
- NE-4A
- NE-5
- NTS2
- NTS4
- NTS4E
- NX1D
- NX1E
- NX2
- NX2A
- NX4A
- NX4B
- SA1
- SA2
- SF1
- SP1
- Switcher
- TRS4
- TSW
- TSW2
- TSW3
- UN2
Nortel Networks (formerly Northern Telecom)
- No. 5 Crossbar
- DMS-10
- DMS-10 RLCM
- DMS-10 RSLE
- DMS-10 RSLM
- DMS-10S
- DMS-100
- DMS-100/200
- DMS-200
- DMS-250
- DMS-300
- DMS-300/250
- DMS-500
- DMS-MTX
- SP1
- SP1 2-Wire
- SP1 4-Wire
Philips
- PRX/A
- UR
- UR NB
- UR49
- URVB
- UV
Redcom Labs
- IGX-A
- IGX-MT
- IGX-N
- MDX 10K
- MDX 384
Siemens
- No. 51 Step-by-Step
- EDX-P
- EMD55
- EMD56
- EMD57
- ESK - CP24
- ESK - CP44
- ESK - CP44A
- EWSD
- Remote Switch Unit RSU-DE3
- Remote Switch Unit RSU-DE4
- Remote Switch Unit RSU-DE5
- RCUB-800C
- DCO-CS
Sonus
- GSX9000
- PSX6000
Stromberg-Carlson
- Century DCO6000
- DCO 21
- DCO 80
- DCO 200
- DCO 360
- DCO Remote Line Switch 1000 (RLS 1000)
- DCO Remote Line Switch 4000 (RLS 4000)
- DCOSE
- DTM
- ESC-1
- ESC-3
- MS30
- SC5
- XY
- RLS 450
Vidar
- IMA2
- ITS 4
- ITS 4/5
- ITS 5
Western Electric / Lucent
Step-by-Step
- No. 1
- No. 350A
- No. 355A CDO (Community Dial Office)
- No. 356A
- No. 360A
Panel
- Local Panel
- Panel Tandem
- Battery cut-off (BCO)
- Ground cut-off (GCO)
Crossbar
- Crossbar Tandem
- No. 1 Crossbar
- No. 3 Crossbar
- No. 3 Crossbar 2-Wire
- No. 3 Crossbar 4-Wire
- No. 4 Crossbar
- No. 4A/CTS Crossbar (Card Translator System)
- No. 4A/ETS Crossbar (Electronic Translator System)
- No. 4M Crossbar
- No. 4M ETS Crossbar
- No. 5 Crossbar
- No. 5 Crossbar 2-Wire
- No. 5 Crossbar 4-Wire
- No. 5 ETS Crossbar
- No. 5A Crossbar
Electronic Switching System
- No. 101 ESS
- No. 1 ESS (1ESS)
- No. 1 ESS 2-Wire
- No. 1 ESS 4-Wire
- No. 1A ESS
- No. 2 ESS (2ESS)
- No. 2A ESS
- No. 2B ESS
- No. 2C ESS
- No. 3 ESS (3ESS)
- No. 4 ESS (4ESS)
- No. 5 ESS (5ESS)
- 5ESS CDX
- 5ESS-2000 VCDX
- 5ESS-2000 VCDX Remote
- No. 5A Remote Switching Module (5A RSM)
- No. 5B Remote Switching Module (5B RSM)
- No. 10A Remote Switching System (10A RSS)