Flexibility to match every budget and all requirements
Own your own SIP trunk
Control your SIP trunk and switch providers when needed. Choose from supported providers for added reliability.
Tailored calling packages
Negotiate a system-wide calling plan that perfectly fits your unique business needs.
System-wide pricing
Avoid costly per-user charges with a single package for your whole system.
Freedom of choice
Choose what works best for your business without being locked into inflated calling costs.
Negotiate your own calling packages
Controlling your own SIP trunk has huge advantages. Firstly, you own the numbers directly, and you can switch to another hosting provider or even PBX whenever you need.
Secondly, you can negotiate your own calling packages system-wide. Although there are many unlimited call options, these often sound better than they are. They usually entail per-user pricing and tend to inflate costs as soon as you go over a certain level or call numbers not included in the package. This can get expensive.
With 3CX you own the relationship with your SIP trunk provider - not 3CX. While you can use any SIP trunk provider, it’s important to consider whether they will support you when things go wrong. That’s why we recommend choosing from our supported SIP trunk providers for a hassle-free experience.
Find a supported SIP Trunk provider
Freedom of choice - own your numbers
Owning your SIP trunk gives your business unmatched flexibility. Keep full control of your numbers, making it easy to switch providers or PBX systems whenever you want. You’re never locked into restrictive terms - choose the setup that works best for you.
Negotiate your own calling packages
Every business has unique needs. With 3CX, you have the freedom to negotiate system-wide calling packages that match your needs. Avoid being tied to rigid or costly "unlimited" plans which often fail to deliver value.
Don't have a SIP trunk yet? Try Twilio
Looking for a new SIP trunk provider? Twilio is a trusted global option. Its perfect for businesses without an existing trunk or those looking for a new provider. Choose Twilio as your SIP trunk provider and 3CX will provision it for you.
All your SIP Trunk questions answered...
Industries We Work With
- Healthcare
- Automotive
- Education
- Technology
- Government
- Services
- Hospitality
- Finance
Healthcare Case Study Bringing NHS Surgeries’ Communications Back from Critical Condition
3CX’s Call Recording & UC Features Meet Surgery Requirements. "The new system dispelled our previous hang ups about hosted telephony and new technologies. With our dedicated internet line we've had a consistent and reliable service. The call quality has been great." Peter McIntyre, Practice Manager, NHS Read the case study.
A Case Study in the Automotive Industry - Buckle Up! Porsche Inter Auto Takes 3CX for a Spin
Thanks to advanced 3CX call center features, gearing up customer service was no issue. "3CX proved instrumental in helping take customer satisfaction to a higher level. We look forward to exploring new product features in upcoming 3CX updates." Željko Hitrec, Communication Manager, Porsche Inter Auto Read the case study
A Case Study in Education: Douglas County School District Enjoys Increased Security and Significant Savings
3CX was chosen above Jive®* and Cisco®* as most cost effective: “This was one of the best decisions we made. The 3CX system is easy to configure and manage and runs on hardware we already owned. ROI will be less than three years." John Endter, IT Director, Douglas County School District Read the case study
Our Case Study in Technology Showcases Benefits to Brazil’s Largest Data Center Provider
With company telephony costs reduced by 20% and increased employee mobility: "We gained high availability VoIP, easy system admin and advanced communications features. Our teams have quality communication capabilities to respond quickly to our customers." Fábio Trimarco, IT Governance Manager, Ascenty Read the case study
3CX Government Implementation Case Study in Bavaria's Landkreis Rhön-Grabfeld Across 31 Municipalities
“3CX was a replacement for Avaya. Existing VOIP infrastructure was expanded to transition from simple telephony to company-wide unified comms. 3CX apps and Web Client gave users a powerful, easy-to-use softphone." Stephen Johannes, Network Telecoms Manager, Landkreis Rhön-Grabfeld Read the case study
A Service Industry Case Study On How Argus Group Insures Themselves Against Communications Failure with 3CX
On replacing their outdated, analog Mitel®* PBX: "The 3CX project allowed us to re-examine our telephony operations. We optimized call flows, shortened wait times for clients and have granular reporting on the nature of calls in the short and long term.” Tory Richard, Head of IT, Argus Group Read the case study
3CX Leads in Club Med Hospitality Case Study - A Globally Recognized Brand Serving Guests Since the 1950’s
3CX checks in to Club Med's all-inclusive resort with a 5 star communication solution: “The integration of 3CX with our global service system (NICE In Contact / Verizon) in the USA, helped increase productivity in a cost-efficient way. Right solution deployed by right partner!” Claudio Cavalcanti, Head of IT South America, Club Med Read the case study
A Case Study in Finance - Adding Value to Phillips Securities Group with Free Interoffice Telephony for 700+ Employees
Rising telephone maintenance costs and operational deficiency over the PSTN: “3CX has cut Phillip’s phone costs sharply. Voice calls go out over the IP phone system, and are routed over the PSTN at the lowest cost. Eight offices are bridged, and interoffice calls are free with IP telephony." Terence Tung, Network Manager, Phillips Read the case study
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