SIP Trunk / VoIP Providers - Country Index & Configuration Guides
- North America
- United States
- Canada
- South America
- Argentina
- Brazil
- Chile
- Mexico
- Peru
- Europe
- United Kingdom
- Germany
- France
- Netherlands
- Italy
- Austria
- Belgium
- Bulgaria
- Croatia
- Cyprus
- Czech Republic
- Denmark
- Greece
- Hungary
- Iceland
- Ireland
- Latvia
- Lithuania
- Malta
- Norway
- Poland
- Portugal
- Romania
- Russia
- Serbia
- Slovakia
- Slovenia
- Spain
- Switzerland
- Sweden
- Ukraine
- Middle East / Africa
- Israel
- Kenya
- South Africa
- Turkey
- Asia Pacific
- Australia
- New Zealand
- China
- Hong Kong
- India
- Japan
- Malaysia
- Maldives
- Singapore
- Thailand
- Vietnam
- Global
- Worldwide
- References
The 3CX SIP Trunk Provider Directory lists available providers country by country. It now uses two interoperability categories: 3CX Tested (tested directly by 3CX) and VoIP Provider Tested (tested by the provider, with test results submitted for review). Community templates may be available in 3CX but are not part of the public provider directory.
Choose a country below to check the current providers, capabilities, configuration notes and testing category. Where provider names are included in this index, they reflect the latest available directory information reviewed for the update. The country page remains the definitive source if listings change.
North America
United States
- Country directory: View current providers and configuration notes
- 3CX Tested: Ahoytel, Voxtelesys, Callcentric, CenturyLink, Sinch, SIPTRUNK, Twilio
- VoIP Provider Tested: Kinetix, Bandwidth, Convergia, Clearfly Communications, Flowroute, IXICA, JiveTel, SIP.US, Skyetel, SparkVoIP, Telin, Telnyx, VoIP.ms
- Dedicated configuration guides: Callcentric, Voxtelesys, Bandwidth, Flowroute, SIP.US, Skyetel, Wavix, Twilio, Sinch
Canada
- Country directory: View current providers and configuration notes
- 3CX Tested: Callcentric, Voxtelesys, Sinch, Twilio
- VoIP Provider Tested: Convergia, Fidalia, IXICA, RingOffice, Skyetel, Telin, VoiceMeUp, VoIP.ms
- Dedicated configuration guides: Callcentric, Voxtelesys, Voip.ms, Wavix, Twilio, Sinch
South America
Argentina
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Brazil
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Nvoip, Vivo, Twilio
Chile
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Mexico
- Country directory: View current providers and configuration notes
- 3CX Tested: Twilio
- VoIP Provider Tested: Convergia, NGX Networks, Telxi
- Dedicated configuration guides: Twilio
Peru
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Europe
United Kingdom
- Country directory: View current providers and configuration notes
- 3CX Tested: BT, Fuse2, Gradwell, Vodafone, Twilio
- VoIP Provider Tested: Brightstar, BT Wholesale, Colt, Gamma, Microtalk, Spitfire, T4COM, Telxi, VoiceHost, Voiceflex, Yellowgrid, Zen (see directory for additional providers)
Germany
- Country directory: View current providers and configuration notes
- 3CX Tested: Peoplefone, Reventix, Twilio
- VoIP Provider Tested: 1&1 Versatel, Deutsche Telekom (CompanyFlex), Deutsche Telekom (NGN SIP Trunk), Deutsche Telekom (All IP), Dus Net, Easybell, EWE, M-net, MK Netzdienste, Plusnet, Vodafone, Wilhelm.tel
- Dedicated configuration guides: Deutsche Telekom (CompanyFlex), Easybell, Reventix, Deutsche Telekom NGN (SIP Trunk), DeutscheTelekom (All IP), Mnet, Twilio
France
- Country directory: View current providers and configuration notes
- 3CX Tested: Bouygues Telecom, Free Pro XPR, Twilio
- VoIP Provider Tested: Alphalink, Coriolis, Dstny, Flexnetwork, Keyyo, Koesio, Orange Business, OVH, Phenix, SFR Business, Sewan, Unixo, Unyc, Voice Manager
- Dedicated configuration guides: Twilio
Netherlands
- Country directory: View current providers and configuration notes
- 3CX Tested: FM Telecom, Keen Systems, Twilio
- VoIP Provider Tested: Colt, CM.com, Dstny, Pocos
- Dedicated configuration guides: Twilio
Italy
- Country directory: View current providers and configuration notes
- 3CX Tested: IRIDEOS, Unidata, Twilio
- VoIP Provider Tested: Colt, Messagenet, Mynet, Plink, Telxi, Trenove, VoipVoice, MyWic (see directory for additional providers)
- Dedicated configuration guides: Twilio
Austria
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Belgium
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Proximus, Twilio
Bulgaria
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: A1, Twilio
Croatia
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Cyprus
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: CYTA, Twilio
Czech Republic
- Country directory: View current providers and configuration notes
Denmark
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Greece
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Hungary
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Iceland
- Country directory: View current providers and configuration notes
- 3CX Tested: Twilio
- VoIP Provider Tested: Nova, Telxi
- Dedicated configuration guides: Twilio
Ireland
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Latvia
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Lithuania
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Malta
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Norway
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Poland
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Portugal
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: check the notes in the country directory.
Romania
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Orange, Twilio
Russia
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Serbia
- Country directory: View current providers and configuration notes
- VoIP Provider Tested: Ringtel
Slovakia
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Slovenia
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Spain
- Country directory: View current providers and configuration notes
- 3CX Tested: Twilio
- VoIP Provider Tested: Teleinformatica, Citelia, Colt, LCRcom, Sewan, Telxi
- Dedicated configuration guides: Twilio
Switzerland
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Sipcall, Swisscom Enterprise SIP, Swisscom Smart Business Connect Internet, Twilio
Sweden
- Country directory: View current providers and configuration notes
- 3CX Tested: Teletek, Twilio
- VoIP Provider Tested: Colt, Internetport, Telxi
- Dedicated configuration guides: Twilio
Ukraine
- Country directory: View current providers and configuration notes
- Provider names and testing categories: see the live country directory.
- Dedicated configuration guides: Twilio
Middle East / Africa
Israel
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Kenya
- Country directory: View current providers and configuration notes
- VoIP Provider Tested: Xcobean Systems
South Africa
- Country directory: View current providers and configuration notes
- 3CX Tested: Kinetix, Vox, Twilio
- VoIP Provider Tested: DataPhone, ICTGlobe, Skywire
- Dedicated configuration guides: Twilio
Turkey
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Guide, Twilio
Asia Pacific
Australia
- Country directory: View current providers and configuration notes
- 3CX Tested: Aatrox, Alloyvoice, BreezeConnect, C2 Communications, Twilio
- VoIP Provider Tested: Buroserv, Lightwire Business, Tata Communications, Telstra Business SIP, Telstra SIP Connect (Enterprise), Telstra SIP Connect (SIP Trunk), Vocus
- Dedicated configuration guides: Telstra – Business SIP, Telstra – SIP Connect (Enterprise), Telstra – SIP Connect (SIP Trunk), Twilio
New Zealand
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
China
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Guide, Twilio
Hong Kong
- Country directory: View current providers and configuration notes
- 3CX Tested: Twilio
- VoIP Provider Tested: 28VoIP, 58VoIP, Tata Communications
- Dedicated configuration guides: Guide, Twilio
India
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Guide, Twilio
Japan
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: CC Architect, Twilio
Malaysia
- Country directory: View current providers and configuration notes
Maldives
- Country directory: View current providers and configuration notes
- VoIP Provider Tested: Telxi
Singapore
- Country directory: View current providers and configuration notes
- 3CX Tested: Twilio
- VoIP Provider Tested: Calncall, Singtel, Tata Communications, Telxi
- Dedicated configuration guides: Singtel, Twilio
Thailand
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Vietnam
- Country directory: View current providers and configuration notes
- Dedicated configuration guides: Twilio
Global
Worldwide
- Country directory: View current providers and configuration notes
- 3CX Tested: Twilio
- VoIP Provider Tested: Tata Communications, Telnyx, Telxi, Bandwidth
- Dedicated configuration guides: Twilio, Bandwidth, Wavix
References
- 3CX SIP Trunk Provider Directory
- How to Configure a SIP Trunk / VoIP Provider
- 3CX SIP Trunk Interoperability Categories
Last Updated
This document was last updated 10 November 2026
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