VoipDiscount offers a simple tool for OS X to make cheap phone calls.
It allows you to use your computer to record, manage, and store phone calls.
VOIP Recorder
VoipGain provides you with the cheapest international calling rates available!
FreeVoipDeal is a VOIP (Voice-over-IP) application.
the best voip calling plan...FreeVoipDeal is a VOIP (Voice
It works like a telephone to let you make calls through your computer.
almost any VoIP gateway provider
Send VoIP push notifications from your Mac to easy debug the process.
Voip Pusher...you send VoIP push notifications
Assessment of the voice services quality over switched-packet networks.
VoIP Tracker Lite helps you keep track status directly from your Mac desktop.
Is your VoIP device correctly...? Device settings VoIP Tracker...The VoIP Tracker
Easily monitor your VoIP device status and let it interact with your Mac: CallerID (Visual and Voice) using your Address Book - iChat status update......
monitor your VoIP device...and WIP310 VoIP Tracker
It helps you call and sms anywhere in the world at the lowest rates possible.
the cheapest VOIP provider
Analyzes network traffic of all connected devices.
SIP, RTP (VoIP) protocols...and RTP (VoIP). To cut
Internet phone to make calls.
other SIP voip softphone). Calls...most major VoIP SIP service...phone via a VoIP SIP gateway
Provides a simple user interface for making VoIP calls with Asterisk PBX.
for making VoIP calls...open source VoIP PBX)