We recommend using services like
Callcentric,
Voxtelesys, and
Skype Connect
because of their call quality and reliability.
Once you’ve chosen your VOIP provider, it’s time to
test it with a free softphone.
Voicent Software integrates with most major VOIP providers by entering some simple information.
To learn how to put this information into our software, read this
SIP Setup Article
that walks you through each step.