SIP Trunking
Build your VoIP system on a private, multi-cloud network in minutes with global SIP Trunking from Telnyx.
Get started in the portal
SIP Trunking built for unlimited global scale
Easily scale your voice services on demand to meet your business needs. Deploy SIP trunking in just a few clicks through our intuitive portal, and add advanced features through flexible apis.
Our private, multi-cloud network ensures reliable call quality, real-time insights, and secure connectivity — plus you get competitive pay-as-you-go pricing and 24/7 expert support.
FEATURES
SIP trunking features, built for power users
Feature-rich voice to deliver mission-critical communications.
HD voice
Leverage wideband codecs like AMR-WB to deliver higher quality audio to power crystal clear conversation.
Emergency calling
Stay in compliance with Kari's Law and the Ray Baum Act by adding an address for in-plan calls to E911 numbers and automated routing to the nearest PSAP.
Detailed debugging
Intuitive debugging tools are available to all users in our portal, so you can troubleshoot your calls with full visibility.
Voice call recording
Easily enable automatic call recording by number or connection, with configurable formats and cloud storage.
Custom voice routing
Choose a routing scheme per number for ultimate quality, lowest cost or specialized traffic types.
Inbound call screening
Filter out unwanted calls and maintain the integrity of your voice communications channels.
Benefits
Get started quickly
The Mission Control Portal makes it easy to search and buy your phone number and create your first SIP trunk. If you need help, in-app support is live 24/7/365.
<5
Minutes to sign up and start talking
Secure, high-quality voice
Our private, multi-cloud network means your voice media runs on a private backbone—away from the congested public internet—to deliver enhanced voice quality and security.
15+
multi-cloud points of presence
Take control of your calls
Our integrations with Microsoft Teams, Zoom, Genesys and more allow Telnyx users to benefit from high-quality cost-effective voice on leading UC platforms.
BYOC
to your favorite platforms
Scale with ease
Respond to demand instantly by adding or removing SIP trunks in seconds with our APIs. Automate number porting and provisioning to enter new markets quickly.
APIs
for global scale
RESOURCES
Start building
Setup SIP connections in minutes.
curl -X POST \
--header "Content-Type: application/json" \
--header "Accept: application/json" \
--header "Authorization: Bearer YOUR_API_KEY" \
--data '{"connection_name": "Test Connection", "user_name": "MyUser", "password":"my123secure456password789"}' \
https://api.telnyx.com/v2/credential_connections
SIP trunk setup
Take a look at how to get started with our SIP Trunking APIs. Configure your connections as needed and start making and receiving calls globally in minutes.
Telnyx ranked in G2's 2025 Best Software Awards
Recognized for our powerful APIs, private global network, and unmatched customer support, we continue to set the standard for high-performance, developer-friendly communications solutions.
How to switch from the PSTN to VoIP
Future-proof your business communications by switching from the PSTN to cloud communications in 6 easy steps.
PRICING
See our SIP trunking pricing
Telnyx customers only pay for what they use, and typically save 30% over other CPaaS providers. Lower list pricing and automatic volume discounts are built in as you scale.
Starting at:
$0.0035
Per minuteSOLUTIONS
Build what you need with flexible voice
Customers save up to 98% of their original telephony bill by switching to Telnyx.
Willie Howe
Business Owner
Sign up and start building
FAQ
SIP trunking, put simply, is a means of operating phone systems over the internet, instead of using a traditional phone line. Learn more about how SIP trunking can transform your business communications on our Resource Center.