VOIP (Voice Over Internet Protocol)
This is a means of Making and Receiving voice and video calls over the internet using a soft phone or IP phone
Google voice, Skype, Vonage all make use of VOIP.
|X-lite Soft Phone|
|Zoiper Soft Phone|
SIP setting is required to configure the soft phone to have a number or SIP
address which can be used to Make and Receive calls provided there is internet connection.