SIP and VoIP are often confused, but they're not the same thing. VoIP (Voice over Internet Protocol) is the broad technology of making phone calls over the internet. SIP (Session Initiation Protocol) is one specific protocol used within VoIP to set up and manage those calls.
Think of it this way: VoIP is the category, and SIP is one of the tools that makes VoIP work. All SIP calls are VoIP, but not all VoIP uses SIP (though most modern systems do). RingVersa uses SIP behind the scenes — you get the benefits of SIP technology without managing it yourself. Plans from $14.95/mo.
Key Features
Everything you need for professional business communication
VoIP is the Category
VoIP is the broad technology of internet-based calling; SIP is one protocol within it.
SIP Handles Signaling
SIP sets up, manages, and ends VoIP calls — the 'control' layer, not the voice audio itself.
SIP Supports More Than Voice
SIP can carry voice, video, and messaging sessions, not just audio calls.
They Work Together
Most VoIP systems (including RingVersa) use SIP for call setup and RTP for voice audio.
Why Choose RingVersa?
Benefits that make a real difference for your business
Understand the tech so you can choose the right phone system
SIP-based VoIP (like RingVersa) works with virtually any IP phone
SIP enables voice, video, and messaging over one connection
No need to manage SIP yourself — RingVersa handles it for you
How It Works
Get started in minutes with these simple steps
Choose Your Plan
Select the RingVersa plan that fits your business size and budget. No contracts — cancel anytime.
Port Your Numbers
We handle porting your existing phone numbers at no charge. Most ports complete in 3–7 business days.
Configure Features
Set up auto attendant, call routing, voicemail, and more through our easy online portal.
Start Calling
Use your desk phone, mobile app, or computer softphone to start making and receiving calls immediately.
Frequently Asked Questions
Everything you need to know about sip vs voip: what's the difference?
Related Resources
Explore more comparisons content
RingVersa vs RingCentral
RingVersa vs RingCentral comparison. Compare pricing, features, and value. See why RingVersa offers better value for business VoIP phone systems.
Learn moreRingVersa vs Nextiva
RingVersa vs Nextiva comparison. Compare pricing, features, and value for business VoIP. See why RingVersa offers better value and simpler pricing.
Learn moreRingVersa vs Zoom Phone
RingVersa vs Zoom Phone comparison. Compare pricing, features, and value. See why RingVersa is the better choice for complete business VoIP.
Learn moreRingVersa vs Microsoft Teams
RingVersa vs Microsoft Teams comparison. Compare pricing, features, and value for business VoIP. See why RingVersa is better for business phone systems.
Learn moreRelated Business Phone Services
Compare core RingVersa services and choose the features that match your team.