SIP Trunking
Flexible SIP connectivity for teams that want carrier control and cleaner call architecture
UponAI gives businesses a flexible SIP layer for connecting existing infrastructure, managing call paths more cleanly, and supporting more modern routing and failover strategies.
What's Included with UponAI SIP Trunks
Core features for teams that want cleaner communication, stronger routing, and room to expand into AI workflows.
Unlimited concurrent calls
Keep your existing on-prem phone hardware
Local & toll-free DID numbers
E911 emergency services
Failover & redundancy built-in
No contracts required
Per-minute or unlimited pricing
BYOC (Bring Your Own Carrier)
Why Teams Choose UponAI
SIP trunking still matters when businesses want to preserve existing infrastructure, improve resilience, or keep a tighter grip on how calls enter and leave the stack.
SIP Trunks Available Nationwide
UponAI supports businesses in every major US market. Find your city.
+ 281 more cities nationwide
Client Perspective
What Clients Say
Teams use UponAI to make real operational improvements, not just to run isolated demos.
“The team was able to turn a messy call flow into a clean AI-driven process that qualified leads faster and reduced handoff friction for our staff.”
Esther Hills
Operations Consultant
“Implementation was practical and fast. The strongest part was not just the technology, but the way the workflows were mapped to how our business actually operates.”
Eddie Johnson
Business Owner
“A lot of AI vendors stop at the demo. UponAI focused on the actual customer journey, which made the rollout far more useful than a generic voice bot pilot.”
Ryan Doyle
Growth Advisor
“The automation helped us stay responsive after hours without sacrificing quality. It gave our team better coverage without creating more operational overhead.”
Lisa Moore
Operations Director
Explore Other UponAI Solutions
Business Phones
Cloud calling, routing, and AI-ready communication workflows for modern teams
Contact Centers
Voice, SMS, chat, and AI-assisted routing for higher-volume customer conversations
Hosted Fax
Secure digital fax workflows for teams that still depend on document-heavy communication
Mobile Calling & SMS
Business calling and messaging that follows your team across every device
Ready to Build Your AI Voice Workflow?
Book a demo to see how UponAI can handle inbound conversations, qualification, and routing for your business.