SIP Trunk / VoIP Providers Configuration Guides

Besides being thoroughly tested against each build, we ensure 3CX Supported SIP Trunks are easy to register and configure. Some providers require no special configuration, simply follow the generic steps to configure a SIP Trunk / VoIP Provider. Others require some additional steps and specifications which we have listed in the guides below per region.

USA & Canada

• Preferred: Callcentric, Voxtelesys
• Supported: Amazon Chime, Bandwidth, Flowroute, SIP.US, Skyetel, Voip.ms, Wavix
• No dedicated guide required: AAA SIP, CenturyLink, Convergia, Fidalia, JiveTel, Networks, Ring Office, SIPTrunk, Telin, Telxi, Vitelity, VoiceMeUp

South America

Argentina

• No dedicated guide required: Convergia, Telxi

Brazil

• Supported: Nvoip, Vivo
• No dedicated guide required: Datora, DirectCall, Telxi

Chile

• No dedicated guide required: Convergia, Telxi

Mexico

• No dedicated guide required: Convergia, NGX Networks, Telxi

Peru

• No dedicated guide required: Convergia, Telxi

Europe

UK

• Supported: Brightstar, BT, BT Wholesale, Vodafone, VoiceHost, Voiceflex
• No dedicated guide required: Fuse2, Gradwell, Colt, Gamma, Spitfire, T4COM, Telxi, Yellowgrid, Zen

France

• Supported: Dstny, SFR Business
• No dedicated guide required: Telerys, Alphalink, Bouygues Telecom, Coriolis Telecom, Flexnetwork, Keyyo, Koesio, OVH, Phenix, Sewan, Unyc, Voice Manager

Germany

• Supported: Deutsche Telekom (CompanyFlex), Easybell, Reventix, Deutsche Telekom NGN (SIP Trunk), DeutscheTelekom (All IP), Mnet
• No dedicated guide required: Peoplefone, 1&1 Versatel, Dus Net, Ewe, MK Netzdienste, Plusnet, Vodafone, Wilhelm.tel

Austria

• No dedicated guide required: Colt, HostProfis, Netplanet, 3 business

Benelux

• Supported: Proximus
• No dedicated guide required: UC Experts, Dstny, TeleVoIP, CM, Keen Systems, FM Telecom, Pocos, TechIT.be, TeleVoIP, Telxi

Bulgaria

• Supported: A1
• No dedicated guide required: Telxi

Cyprus

• Supported: CYTA
• No dedicated guide required: Epic, Telxi

Croatia

• No dedicated guide required: Telxi

Czech

• No dedicated guide required: Vodafone, Telxi

Denmark

• No dedicated guide required: 1tel, Colt, Telxi

Greece

• No dedicated guide required: Modulus, Telxi

Hungary

• No dedicated guide required: Telxi

Iceland

• No dedicated guide required: Nova, Telxi

Ireland

• No dedicated guide required: Colt, Ntes

Italy

• No dedicated guide required: IRIDEOS, Colt, InfoSet, MessageNet, Plink, Telxi, Trenove, Unidata, VoipVoice

Latvia

• No dedicated guide required: Telxi

Lithuania

• No dedicated guide required: Peoplefone, Telxi

Malta

• No dedicated guide required: Go

Norway

• No dedicated guide required: Telxi

Poland

• No dedicated guide required: Actio, Nask SA, PLFON, Telxi

Romania

• Supported: Orange
• No dedicated guide required: Telxi

Russia

• No dedicated guide required: Beeline MPBX, Beeline MPBX IP-Based, Mango Office, Novofon

Slovakia

• No dedicated guide required: Telxi

Slovenia

• No dedicated guide required: Telxi

Spain

• No dedicated guide required: Citelia, Colt, lcrcom, Sewan, Telinformatica, Telxi

Sweden

• No dedicated guide required: Colt, Internetport, Teletek, Telxi

Switzerland

• Preferred: Sipcall 
• Supported: Swisscom Enterprise uSIP, Swisscom Smart Business Connect Internet
• No dedicated guide required: iWay.ch, Peoplefone, UPC business, Colt, Sunrise Registration, Sunrise Business voice direct, Swisscom Business Connect, Swisscom Smart Business Connect, Quickline

Ukraine

• No dedicated guide required: Kyivstar, Telxi

Middle East / Africa

Israel

• No dedicated guide required: Partner, Telxi

South Africa

• No dedicated guide required: Kinetix, DataPhone, Vox, Skywire

Turkey

• No dedicated guide required: 3C1B, Avencom, Telxi

Asia Pacific

Australasia

• Supported: Telstra – Business SIP, Telstra – SIP Connect (Enterprise), Telstra – SIP Connect (SIP Trunk)
• No dedicated guide required: Aatrox, Alloyvoice, BreezeConnect, C2comm, LightwireBusiness, Vocus, Buroserv, Ufone, 2Talk

China

• No dedicated guide required: 58VoIP, China Mobile, Telxi

Hong Kong

• No dedicated guide required: 58Voip, 28VoIP

India

• No dedicated guide required: Telxi

Japan

• Supported: CC Architect
• No dedicated guide required: Cloud Nippon, Telxi

Malaysia

• No dedicated guide required: CallaCloud, Telxi

Singapore

• Supported: Singtel
• No dedicated guide required: Calncall, Telxi

Thailand

• No dedicated guide required: Callnclear, 2A+, Telxi

Vietnam

• No dedicated guide required: ConnectViet, Telxi

Worldwide

• Supported: Twilio, Bandwidth, Wavix
• No dedicated guide required: Tata Communications, Telxi

Last Updated

This document was last updated on 8 October 2024

https://www.3cx.com/docs/sip-trunk/