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TELIN One

Next-Gen SIP Trunking for Modern UCaaS

3CX Supported SIP Trunking, Compatible with All Major PBXs for Seamless Integration
Use Us As Your VOIP Provider
Reliable, Scalable, and Custom SIP Trunking to Meet Your Unique Needs

Product Overview

TELIN helps MSPs, VARs, and IT consultants deliver high-quality voice services while maximizing profit. With access to hundreds of Tier 1 carriers, we offer international termination in 100+ countries—fully ISO27001 and GDPR compliant, with no grey routes.

Choose from scalable, cost-effective plans: unlimited usage per channel or pay-as-you-go, both shareable across unlimited extensions. Whether you're new to VoIP or a seasoned expert, TELIN gives you the tools, flexibility, and expert support to grow your business with confidence.


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Telin SIP Trunking: Global Connectivity, Seamlessly Integrated

For nearly 30+ years, TELIN has been at the forefront of empowering MSPs, VARs, IT consultants, and master agents with innovative, cost-effective SIP trunking solutions. With direct connections to tier-1 carriers worldwide, we deliver top-tier service and the highest quality routes helping you elevate your client experience and boost your bottom line.

Why TELIN SIP Trunking is Your Ideal Solution

3CX-Ready, PBX Agnostic

TELIN’s SIP trunks are fully compatible with 3CX and seamlessly integrate with all major PBX systems. Whether you're using 3CX or another PBX, our SIP trunks offer the flexibility to fit any setup, ensuring smooth and hassle-free deployments.

Global Coverage, Unmatched Reliability

Deliver your services with confidence. Our SIP trunking solution spans over 100 countries, utilizing premium white routes to guarantee high-quality connections. Plus, we meet global standards with full ISO27001 and GDPR compliance, ensuring secure and reliable communication for your business.

Tailored Solutions that work for you

Our flexible, customizable plans include both metered and unlimited options, designed specifically to match your business requirements and client needs. This allows you to keep your proposals competitive and win more deals while offering clients the best value.

Metered and unlimited options, designed specifically to match your business requirements and client needs. This allows you to keep your proposals competitive and win more deals while offering clients the best value.

Control your margin

Maximize your revenue with Telin’s SIP trunking solution. You control the pricing, margins, and customer relationships, empowering you to scale your business with full flexibility and greater profitability and white-label billing options to grow on your terms.
Choose what fits your business: unlimited usage per channel or low-rate, pay-as-you-go models—both flexible and scalable.

Unmatched Support with Expertise

Whether you're a seasoned professional or new to SIP, our dedicated team of experts is here to support you every step of the way. With over 30+ years of technical experience, we ensure a seamless experience from setup to ongoing management. dedicated team of experts is here to support you every step of the way. With over 30 years of technical experience, we ensure a seamless experience from setup to ongoing management.

Private routing via Megaport

Avoid the public internet entirely. Route SIP traffic over dedicated, encrypted links using Megaport’s global backbone.

Telin’s High-Performance, Enterprise-Grade Solution

Looking for a reliable SIP trunking provider that goes beyond basic connectivity? TELIN delivers secure, high-performance SIP trunking backed by Twilio Interconnect and Megaport—giving you better call quality, enterprise-grade resilience, and a future-proof UCaaS infrastructure.


We choose the best


TELIN chose to use Megaport, one of Twilio Interconnect’s partner exchanges, for private connectivity from Telin’s network into the telephone switches on Twilio’s network. Because of Megaport’s 780+ enabled locations worldwide, Megaport services were already available where TELIN’s network infrastructure was located in Ashburn, Virginia.


API-Powered Control via Telin One.Console™

Managing SIP trunks shouldn’t require a support ticket. Telin partners gain access to our One.Console™ portal—a fully white-labeled management hub that gives you:

  • API-level control over number porting, SIP registration & provisioning
  • Seamless integration with Twilio’s voice, SMS, and messaging APIs
  • A branded experience your team and customers can own
Whether you're a VAR, MSP, or UCaaS reseller, Telin enables you to launch and scale without the overhead of an engineering team.

Secure SIP Trunking for Peace of Mind

Security isn’t optional—it's built into Telin’s network.

  • DDoS Protection at the Carrier Level
After watching competitors suffer week-long outages from DDoS attacks, Telin engineered a resilient SIP infrastructure that prevents congestion, blocks attack vectors, and ensures network continuity.
  • Encrypted Private Interconnects
All SIP traffic between Telin and Twilio is transmitted via secure, encrypted cross-connects—not the open internet—delivering enterprise-grade protection from eavesdropping, interception, and data loss.

Private SIP Trunking Built for Speed, Stability & Scale

Telin’s SIP trunking solution isn’t just another VoIP connection—it’s a fully optimized platform designed for businesses that can’t afford dropped calls or poor call quality.

Here’s what sets Telin SIP trunks apart:

  • Private, Low-Latency Voice Routing
Through Megaport’s global private network and Twilio Interconnect, Telin routes voice traffic through dedicated links, avoiding the public internet. That means crystal-clear call quality and instantaneous call setup, even during peak hours.
  • Built-In VoIP Redundancy & Failover
Telin uses a stacked origination model: primary voice traffic flows over Megaport, while automatic failover kicks in via the public internet. This dual-path system keeps your communications up—even if one route fails.
  • Global Coverage, Local Reach
With Megaport’s 780+ global points of presence and Telin’s geo-redundant infrastructure, you get fast, stable connectivity whether your business is in North America, Australia, or beyond.

Telin’s High-Performance, Enterprise-Grade Solution

Looking for a reliable SIP trunking provider that goes beyond basic connectivity? Telin delivers secure, high-performance SIP trunking backed by Twilio Interconnect and Megaport—giving you better call quality, enterprise-grade resilience, and a future-proof UCaaS infrastructure.

Read More about Megaport crossconnect
Case Study
Results That Speak for Themselves

After implementing Twilio Interconnect with Megaport’s private connectivity, TELIN customers reported immediate performance boosts, higher customer satisfaction, and worry-free uptime even during outages that crippled other carriers.

“Call connections are quicker. Call quality is better. From hitting ‘Dial’ to getting a ringtone—it’s instantaneous now. Those issues with jitter, latency, or delay? Gone.”— Joshua Westfall, CTO, TELIN


Ready to Experience the Future of SIP Trunking?

Whether you're building a multi-location voice network, rolling out a UCaaS product, or need a secure SIP trunking solution that scales—Telin delivers.

Get in touch to learn how our SIP trunking solution can power your business. to learn how our SIP trunking solution can power your business. to learn how our SIP trunking solution can power your business. to learn how our SIP trunking solution can power your business. to learn how our SIP trunking solution can power your business.

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Partners Testimonials 

I had the best customer service experience with Christopher Lee from TELIN Support. He guided me through updating my 3CX server instance with patience and expertise, ensuring a seamless process from start to finish. Not only did he answer all my questions thoroughly, but he also went above and beyond by assisting with network issues and providing remote desktop support. His professionalism, deep knowledge, and dedication truly stood out, making this a first-class support experience. I sincerely appreciate his outstanding assistance and would recommend TELIN to anyone using 3CX.

Tenacity Michael Williams

I wanted to take a minute to let you know how thrilled I was to interact with you and your staff.

Thank you to Matthew Miller and John O’Neill. And you for jumping in to help even while you were hosting an in-person training.

Affant Technology Diana keyes, Owner

The definition of a good unified solutions provider is invisibility.  A good provider is like a stapler.  It’s there when you need it, doesn’t require a lot of attention and does what you need it to do well.  Telin meets that criteria. Brian Vita,Total Cinema Solutions

Total Cinema Solutions Brian Vita, Owner

When our original provider failed miserably, Telin has proven to us that they are able to rise above the issues and allow us to work together towards a speedy resolution. When presented with a problem, they focus on the solution.

DataOnline Steward Hargrave, IT Manager

I’m a multifaceted tech guy.  I know what I need I just don’t know how to do it in a way that makes me comfortable sleeping at night, knowing that it’s not going to explode at 2 o’clock in the morning and I’m not going to know what to do because I have never encountered it or I simply don’t have the resources to draw on at 2 o’clock in the morning. Enter TELIN!

Aircraft Services Group & Corbett Consulting Joe Corbett, founder

We researched a bunch of providers when we were looking at 3CX and some other partner programs that were out there. We really gravitated to TELIN. What you were able to offer had everything we were looking for and you made it rather easy to get started.”  “Knowing that we have a partner like TELIN there for us—it’s really made us feel comfortable being able to promote and offer the solutions, and turn them out very quickly and very seamlessly for our customers.

AVX Integrated Technologies
Jason Etter,Owner

Partners Testimonials 

Learn More About the Telin Partner Success Program
Our program offers exclusive benefits, expert support, and marketing tools to help you succeed with Telin. Whether you're a reseller, MSP, or systems integrator, we're here to accelerate your growth.
Join the Partner Success Program
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Need more than SIP Trunking?

With Telin’s one.console platform, you can access everything you need to grow and manage your telecommunications business seamlessly. Our portfolio boasts an array of cutting-edge offerings, including:

    • ​

      SIP Trunks

    • ​

      Efax

    • ​

      Cloud Hosting

    • ​

      Fanvil, Yealink & Snom Phones

    • ​

      Cyberdata Devices

    • ​

      3CX Addons

    • ​

      Peplink Solutions

    • ​

      Robust White-Label Billing Platform

All these solutions are available through one intuitive, centralized platform — one.console. From provisioning to billing, everything you need to optimize and scale your business is right at your fingertips.

Get In Touch

Fill out the contact form to send us a direct message. Please provide us with some details about your organization and the services you are interested in. Our team will get back to you within 24 hours.