+1 800.462.8694 U.S. | +1 770.937.9735 Worldwide

International SIP Trunking Solutions

Find out why AVOXI is the top SIP trunk provider for business. Benefits of VoIP SIP trunk service include:

Instant SIP Trunk Activation
No Setup Fees, No Minimum Contracts
Amazing Call Quality and 99.999% Uptime
Outbound Dialing with Global Termination
Add, Remove, and Customize SIP Trunks Online
Advanced Call Routing to Any Device Worldwide
SIP Trunk DID Numbers Available in 140+ Countries
Complete the Short Form for Complete Pricing Plans
Instant SIP Trunk Activation
No Setup Fees or Contracts
99.999% System Uptime
Global Outbound Dialing
Inbound Call Routing Anywhere
Add, Remove, and Customize SIP Trunks Online
Complete the Short Form and Receive Complete Pricing Plans

Try the Best Global SIP Trunk Service Risk-Free

Business SIP trunking service instantly connects you to AVOXI's global VoIP network. Choosing AVOXI as your international SIP trunk provider ensures amazing voice quality and secure call routing worldwide. Every SIP trunk solution from AVOXI includes global outbound dialing with custom caller ID, inbound call routing, and 20+ advanced VoIP features at no extra cost. You can buy SIP trunks with no setup fees or minimum contracts. Try AVOXI's global SIP trunking service for 30 days risk-free.

The Most Reliable VoIP SIP Trunk Provider

The benefits of choosing AVOXI as your global SIP trunking service:

  • Toll free and local SIP trunk DIDs available in 140+ countries
  • Instantly make outbound calls to any global destination.
  • Provision SIP trunks from US or Hong Kong server locations.
  • Forward inbound calls anywhere with advanced routing rules.
  • Add, remove, and customize your SIP trunk settings online.
  • Earn $25-$1,000 in credit for every number you transfer to AVOXI.
  • Try VoIP SIP trunking for 30 days risk-free, no setup fees or contracts.
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Business SIP Trunking with Global 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.

SIP Trunk Solutions Include Advanced Inbound Call Management

  • 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.
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Expect the Best from Your International SIP Trunk Provider

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  • Enjoy 99.999% uptime and secure failover routing. 
  • Host unlimited call conference rooms with up to 500 participants.
  • Ever plan includes access to 24/7 technical support. 
  • Instantly buy SIP trunk DIDs at amazing prices in 140+ countries.
  • No setup fees. No minimum contracts. Port your numbers anytime. 
  • Choose SIP server locations in the US or Hong Kong for amazing call quality anywhere in the world.

Why International Companies Choose AVOXI

There's a reason that thousands of companies worldwide trust AVOXI with their business SIP trunking solutions. No matter where you need service, direct interconnects with Tier 1 carriers worldwide allow AVOXI to deliver enterprise level-call quality at the most globally competitive rates. No matter where you do business, you can expect the most reliable SIP trunking service anywhere. 

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Reduced Cost

Reduce corporate call costs as much as 50% with a SIP trunk solution customized for your specific business needs.

business sip trunking

Global Reliability

Data centers across America, Africa, and Asia provide multiple layers of SIP failover to ensure maximum service uptime.

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Customer Focus

Every SIP trunk solution includes a dedicated account manager focused on the specific needs of your business.

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Amazing Call Quality

Over 99% of calls handled by AVOXI receive MOS scores above the global standard for "excellent" voice quality.

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Advanced Features

Customize 20+ VoIP features, included at no extra cost.

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Fast Deployment

Deploy VoIP SIP trunks anywhere in minutes.

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Flexible & Scalable

Add up to 480 channels per SIP trunk as your business grows.

24-7 Support (17)

Expert Support

Get 24/7 technical support in English and Spanish.

 How to Set Up SIP Trunking Service Today

If you simply need inbound SIP trunking with a DID for incoming call management and standard outbound calling, you can set up service online by securing a number in the Online Shopping Cart. To get a complete list of our global termination rates and to view business SIP trunk plans and pricing designed for your specific needs, contact us today!

1. Get Custom Pricing

top sip trunk service

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 SIP Trunks Online

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Buy SIP Trunks Online

Buy SIP trunk DID numbers online now. Standard outbound calling features are automatically included. You can set up SIP trunks for your DID numbers anytime from your Online Interface.

Buy SIP trunk DID numbers online now. Standard outbound calling features are automatically included. You can set up SIP trunks for your DID numbers anytime from your Online Interface.

3. Contact AVOXI Directly

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Call AVOXI from

 US/Canada: 1 800 394 1980
 Australia: 1 800 834558
 Hong Kong: +852 30114974
 Worldwide: +1 (770) 937-9735
 US/Canada: 1 800 394 1980
 Australia: 1 800 834558
 United Kingdom: 0800 652 5029
 Hong Kong: +852 30114974
 Germany: 0800 000 0476
 South Africa: 080 098 1340
Virtual Mexico Phone Number Mexico: 01 800 099 1204
 Worldwide: +1 (770) 937-9735

SIP Trunk DID Numbers Available in 150+ Countries

With local partnerships and Tier 1 carrier interconnects around the world, enjoy top enterprise-level call quality for the best rates worldwide.

Get local and international SIP trunk DIDs from 150+ countries and 2,500+ cities. Popular service areas include:

Asia Pacific


North America




New Zealand




Saudi Arabia


South Korea







British Virgin Islands


Costa Rica

Dominican Republic




Puerto Rico

Trinidad and Tobago

United States

US Virgin Islands





Czech Republic
























South Africa

South America






Have Questions About SIP Trunk DID Coverage?

Contact us today to learn more, schedule a free demo, or to set up VoIP SIP trunking for 30 days risk-free!

Frequently Asked Questions About Business SIP Trunking

How many concurrent calls can I make per SIP trunk?

Business SIP trunking supports as many as 480 channels per trunk. There is no limit on how many SIP trunks you can provision to a single account. If you are not sure how many channels you need, we'd love to help! Contact us today to learn more.

Does AVOXI offer unlimited VoIP SIP trunk plans?

AVOXI provides customized business SIP trunk solutions to best meet each customer’s specific needs. If you are interested in an unlimited SIP trunking plan, contact a VoIP SIP specialist today.

Do I buy SIP trunks for each country I make calls to?

No. Every SIP trunk solution from AVOXI includes outbound calling with global termination. You can also make outbound calls worldwide by simply purchasing a SIP DID number in the Online Shopping Cart.

How long does it take to set up my global SIP trunks?

AVOXI activates new business SIP trunk accounts within business 24 hours. In most cases, international SIP trunking can be activated the same day. AVOXI customers can upgrade or downsize their SIP trunk solution anytime.

Can I buy SIP trunks online?

Yes. Once global SIP trunking has been activated, you can add or remove SIP trunks from the AVOXI Core User Interface as your business needs change.

What else can AVOXI do to support my business?

In addition to the best international SIP trunking solutions for business, popular services from AVOXI include Virtual 800 Numbers and VoIP Contact Centers.