
Try the Best USA SIP Trunk Service Risk-Free
USA SIP trunking connects you to AVOXI's global VoIP network, reducing your call costs and ensuring top voice quality worldwide. The benefits of choosing AVOXI as your US SIP trunk provider include:
- Toll free and local USA SIP trunk DIDs start at just $4.49.
- Instantly make outbound calls to any location worldwide.
- Forward inbound calls anywhere with advanced routing rules.
- Buy and manage US SIP trunks online anytime, anywhere.
- Earn $25-$1,000 in credit for every number you transfer to AVOXI.
- No setup fees or minimum contracts. Try USA SIP trunking for 30 days risk-free.


US SIP Trunks with Global VoIP Termination
- Every US SIP trunking plan includes global outbound dialing.
- Use your toll free or local DID numbers as your custom caller ID.
- Establish controls on outbound dialing with call barring rules.
- Instantly add, remove, and manage US SIP trunks online.
- Every SIP DID number includes a free softphone.
- Designate SIP trunk servers from our US or Hong Kong centers.
- Complete the short quote form to view complete SIP termination rates.
Every US SIP Trunk Plan Includes Advanced Inbound Routing
- Create unlimited call groups with custom handling rules.
- Enjoy 15 days of free call recording or set up extended plans.
- Update your IVR menus and personalized greetings anytime from your Online User Interface.
- Customize SIP forwarding rules like time-based routing, simultaneous ringing, find-me-follow-me and more.
- Advanced routing, voicemail services, detailed analytics, and many more features automatically included at no extra cost.

Expect the Best from Your USA SIP Trunk Provider

- Enjoy 99.999% uptime and amazing call quality worldwide.
- Host unlimited call conference rooms with up to 500 participants.
- Every SIP plan includes access to 24/7 technical support.
- Instantly activate SIP numbers in the US and 140+ other countries.
- No setup fees. No minimum contracts. Port your numbers anytime.
Why So Many Companies Choose AVOXI

Reduced Cost
Cut your communications cost up to 50% with flexible USA SIP trunking services.

Global Redundancy
Data centers across the US, Africa, and Asia provide SIP failover for maximum uptime.

Customer Focus
Every AVOXI customer has access to 24/7 support a dedicated account manager.

Amazing Call Quality
Flexible SIP server locations help AVOXI deliver amazing call quality worldwide.

Fast Deployment
Setting up SIP trunking in the US or anywhere else worldwide is quick and easy.

Flexible & Scalable
Instantly manage as many as 480 channels per trunk as your business grows.
Find Out How Much You Can Save with USA SIP Trunking Service Today
How to Set Up USA SIP Trunking Today
If you simply need a USA SIP DID for inbound call management and standard outbound calling, you can set up service online by securing a number in the Online Shopping Cart. To get custom pricing or detailed SIP termination rates in the USA and around the world, contact us today!
1. Get Custom Pricing

Get Custom Pricing
Complete the short quote form to view our complete table of SIP termination rates or to receive a custom pricing plan. For questions about our service, use this form or simply contact us today by phone.
Complete the short quote form to view our complete table of SIP termination rates or to receive a custom pricing plan.
2. Buy US SIP Trunks Online

Purchase Online
Buy USA SIP DID numbers online now. Standard outbound calling features are automatically included. You can buy SIP trunks for your DID numbers anytime from your Online Interface.
Buy USA SIP DID numbers online now. Standard outbound calling features are automatically included. You can buy SIP trunks for your DID numbers anytime from your Online Interface.
3. Contact AVOXI Directly

Call AVOXI from
Frequently Asked Questions
How long does it take to get USA SIP DID numbers?
AVOXI provides USA SIP numbers in 24 - 48 hours or less. In most cases, your number is activated the following business day.
I already have a USA SIP trunk number, but I want to save money with AVOXI. What can I do?
To reduce call costs or use our service with an existing number, simply transfer your number to AVOXI. Transferring USA SIP numbers is quick, easy, and free with AVOXI.
Can I make outbound calls from a USA SIP DID number without adding additional trunks?
Yes, we include outbound calling and custom caller ID with any plan.
How else can AVOXI help my business?
In addition to best USA SIP trunking plans on the market, popular services from AVOXI include:
- International Call Forwarding Service
- Cloud Contact Center Solutions
Have Questions About USA SIP Trunk Services?
We're here to help. Contact AVOXI today with questions about US SIP trunking or to learn more about global VoIP calling.