Switching, Voice, PBX, Access & Legacy Systems
- 1 ESS
- 5 ESS
- 1648SM
- ClientCare
- Comsphere
- CSX-2
- DCS/EDX
- DCSS 240E
- DDM/SLC-2000
- DDM-1000
- DDM-2000
- DDM-PLUS
- DDS
- Definity
- DER-B
- DEX
- DEX-CS
- DEX-CS1
- DEX-ECS1
- DEX-STP
- DFT-5
- DIXI-3
- DMS 100
- DMS-10
- DS1
- DS2
- DS3
- DSX
- DSX1
- DSX1/C
- DSX-3
- DSX-3/4
- E 10
- ECS
- EMRS
- Enterprise 3000
- ESCT 2000
- ESF CSU ML
- Exchange MAX FDF
- EXS
- FES 301
- FITL
- FLC
- FT 2000
- FT Series G
- FTS 1
- FTS 150
- FTS 2
- FTS 3
- FTS 3C
- FTS 600
- Gateway
- GCNS 2000
- GTD 5
- GTD 5/2EAX
- IMERGE
- IPMedia 2000
- IRT 2000
- ISM
- ISM 2000
- J85501K 1
- J85582B 1
- LAG 4300
- LCX 50
- LDR 200
- LINCS
- Litespan
- Litespan 2012
- Litespan 4000
- Litespan 7201
- LNG 2000
- LS 2000
- LS 2012
- LS FO
- LTS 21130
- Main Street 3600
- MainStreet
- MAX TNT
- MAX UM
- MCU
- Meridian
- Merlin
- Messaging Link
- Milife Application Server
- OCTEL
- OCTEL 250
- Partner
- Partner II
- PathStar
- PBX DIM
- PBX System 85
- Sys 75
- Sys 85
- SLC
- SLC 2000
- SLC 40
- SLC LineReach
- SLC SER5
- SLC-5
- SLC-96
- SL 1000 / SLM 2000
- SLM 2000
- SLM 2000 16
- Smart MDF
- SMAS Plus
- TSPS
- Yukon