PC Best Networks
Freeware
A Free Windows SIP PBX, with rich and powerful features.
pbxnsip Inc.
25
Freeware
It is designed for the entry or hybrid VoIP or IP PBX market space.
41
StarTrinity
180
Freeware
You can test VoIP network, SIP software or hardware.
42
Ozeki Ltd.
14
Demo
Provides professional technology for VoIP voice calling.
3CX Ltd
30
Freeware
It can simplify Firewall configuration at both the remote and the PBX location.
3
AdoreSoftphone
208
Demo
A basic SIP Softphone that allows to connect to VoIP PBX and providers.
1
PortSIP Sutions, Inc.
74
Freeware
Softphone compatible with SIP for voice over IP PBX or international providers.
44
StarTrinity.com
11
Freeware
SIP VoIP Softswitch with billing for VoIP wholesale, GSM termination, IVR, PBX.
16
VaxSoft
4
Shareware
Secure AI-powered SIP SDK for VoIP servers, IP-PBX, IVR, and call centers.
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.
63
KaplanSoft
60
Shareware
TekSIP is a SIP Registrar and SIP Proxy for Windows.
1
PCBest Networks
18
Freeware
Robust SIP ActiveX Phone is a powerful and robust SIP ActiveX phone client.
E-Soft Billing (Pvt.) Ltd.
2
Demo
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
82
Claudio Lanconelli
9,705
Open source
Ponyprog is very powerful microchip and microcontroller programmer.
