23
Circuit Diagram
2,205
Open source
It helps you make electronic circuit diagrams and export them as images.
15
University of Colorado
430
Freeware
Build circuits with resistors, light bulbs, batteries, and switches.
Circuit Magic
32
Shareware
Circuit Magic is an electrical circuits simulation program.
WillVoice
4
Shareware
Management & Console application for AsteriskWin32 PBX.
89
best3dgames.net
44
Circuit Weaver is a completely original puzzle game.
Megasys Software
7
Shareware
For calculation of meshed or ring main type of circuit network.
3
3xM Automation
65
Shareware
Make electrical circuit diagrams with special direction on automation projects.
4
Alain MICHEL
19
Shareware
It allows you to make drawings of printed circuit in single or double layers.
37
Voicent Communications, Inc.
125
Freeware
Voicent Flex PBX is an easy-to-use software-based PBX system. It supports both analog phone services....
NeoNova BV
2
Shareware
The Astium PBX is the most advanced PBX's nowadays available.
8
the Qucs team
3,049
Open source
Quite Universal Circuit Simulator is an integrated circuit simulator.
13
Richard P. Andresen
1,147
Shareware
Use analog circuit simulation for the professional circuit designer.
3
ABB
329
Freeware
Air circuit breakers can be used both as circuit-breakers for general protection.
Auerswald GmbH & Co.KG
8
Freeware
Enables you to attach an ISDN PBX or another ISDN device to two connections.
1
Code Plex
2
Freeware
FREE Windows-based open source PBX, IVR and Auto-Attendant Phone System.
3
AdoreSoftphone
208
Demo
A basic SIP Softphone that allows to connect to VoIP PBX and providers.