On Premise Software Help Resource : Help TopicsSIP Options

With SIP, you do not need a physical telephone line to make phone calls. You do not need a voice modem either. For more information, please see http://voicent.com/sip.

After getting a SIP account from your service provider or your PBX system administrator, you should be able to make phone calls using a SIP soft-phone, which is a piece of software capable of making phone calls over the Internet. There are many free SIP soft-phones, such as X-lite, available for download. Once installed, try to make a few phone calls to make sure it works. Voicent software starts each SIP line as a SIP soft-phone. So as long as your SIP soft-phone is working, you should be able to use Voicent to make phone calls.

The SIP account information should be the same information you use for setting up a soft-phone. If you are not sure, call your service provider and ask for help to setup a soft-phone. (Please do not call Voicent since we do not have that information)

The STUN server is used for firewall traversal. If there is a router/firewall between your service provider and your computer, you normally need to set this value. Otherwise, you might not hear audio for your phone call. You can use the free STUN server listed in the Window.