If you already have an on-premise PBX phone system, SIP trunking lets you connect it to the cloud — replacing expensive traditional phone lines (PRIs) with cost-effective internet-based trunks. RingVersa's SIP trunking service delivers high-quality voice calls over your internet connection at a fraction of the cost of legacy phone lines.
Keep your existing PBX hardware and desk phones while benefiting from cloud-based call routing, lower costs, and greater flexibility. SIP trunks scale instantly — add channels when call volume increases, remove them when it decreases. No more paying for unused capacity on traditional PRIs.
Key Features
Everything you need for professional business communication
Connect Existing PBX
Use your current on-premise PBX hardware and desk phones with cloud-based trunks.
Lower Costs
Replace expensive PRIs and traditional phone lines with affordable SIP trunks.
Instant Scalability
Add or remove call channels instantly to match your call volume — no waiting for provisioning.
HD Voice Quality
Crystal-clear audio with QoS support for prioritizing voice traffic on your network.
Why Choose RingVersa?
Benefits that make a real difference for your business
Keep your existing PBX hardware — no rip and replace
Save up to 60% compared to traditional PRI phone lines
Scale call capacity instantly to match demand
Get cloud features without replacing your phone system
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 trunking service
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