PortToPort is a software that calculates the distance between two ports.
3CX System Ltd
Be connected to all your contacts anyhwere anytime with 3CX VoIP Client.
This software enables voice, video and IM sessions based on XMPP, SIP and IAX2.
A peer-to-peer voice-enabled LAN instant messenger.
Virtual Serial Port Software
Monitor, analyze and save logs from your system's RS232/422/485 serial COM ports.
It is also a very handy utility during your LPT port development activities.
You can test VoIP network, SIP software or hardware.
UDP Test Tool is both a UDP packet generator and listening application.
Monitor RS232/422/485 COM ports in your system. Analyze and log serial port.
VSPE is intended for engineers and developers to create/debug/test applications.
Famatech International Corp.
Retrieves versions of programs running on the detected ports.
A battery voltage tester and a battery load tester.
True Soltec Co.,ltd.
Pull Tester is a motor driven automatic pull force tester of crimped harnesses.
Router Port Forwarding is a port forwarding and port triggering tool for router.
HW Virtual Serial Port allows creating virual serial port drivers.
HotRecorder for VoIP Flawlessly record your VoIP conversations!
Parallel Port PIC Programmer uses PC's parallel port for communication.
COM Port Data Emulator is a tool for emulating a com port or an Ethernet device.
COM Port Stress Test is a tool for testing a COM or RS232 port (device).
1st Net Scanner is a useful IP Finder and Port Finder. It builds IP finder, port finder, IP scanner...