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.
335
New Wave Concepts Limited
9,963
Shareware
Combines circuit design, simulation and CAD manufacture to realize projects.
Circuit Magic
32
Shareware
Circuit Magic is an electrical circuits simulation program.
21
University of Colorado
94
Freeware
Fun, interactive, research-based simulations of physical phenomena.
8
the Qucs team
3,049
Open source
Quite Universal Circuit Simulator is an integrated circuit simulator.
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.
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.
27
Emil Stoyanov
43
Open source
Kiax is a softphone for making VoIP calls to Asterisk PBX.
1
PortSIP Sutions, Inc.
74
Freeware
Softphone compatible with SIP for voice over IP PBX or international providers.
2
Zeosoft
253
Shareware
Call Accounting Software for a variety of PBX.
