VoIP
Also known as: Voice over IP, internet calling
VoIP (Voice over Internet Protocol) is technology that carries phone calls over the internet instead of traditional copper phone lines.
VoIP converts voice into data packets and sends them over the internet, so a “phone call” becomes a software-driven event rather than a fixed circuit. This is what lets modern call tracking provision numbers on demand, apply call routing rules, and record and analyze conversations at scale.
VoIP underpins related plumbing like SIP trunking and makes number porting between providers possible.
Frequently asked questions
Why does call tracking run on VoIP?
Because calls are handled in software, VoIP makes it cheap and instant to provision tracking numbers, route calls by rules, record audio, and attach data to each call, all things that are slow or impossible on legacy phone lines.
What is VoIP used for?
VoIP carries phone calls over the internet, so it powers business phone systems, call centers, app-based calling, and call tracking. Because each call is a software event, it makes provisioning numbers, routing, recording, and analyzing calls cheap and instant.
What is the difference between VoIP and SIP trunking?
VoIP is the broad technology for carrying calls over the internet; SIP trunking is one specific way to deliver it — virtual lines that connect a phone system, often an on-prem PBX, to the public phone network over IP. All SIP trunking is VoIP, but plenty of VoIP services don't use SIP trunks.
Related terms
Track the calls your marketing earns
End the uncertainty of marketing campaigns with Analytic Call Tracking.
Try FREE for 15 daysNo credit card required – Cancel anytime.