Comparing Telnyx and Twilio
Articles - 14 min read

Comparing Telnyx and Twilio

The right CPaaS provider makes it easy for businesses of all shapes and sizes to embed secure and reliable omnichannel communications capabilities into their applications, to better meet the needs of today’s businesses, customers and end-users.
The right partner can make a big impact to your customer experience and your bottom line, so it’s important to make the best choice. We’ve put together this definitive guide to help you understand the differences between Telnyx and Twilio—so you can make the most informed decision that maximizes benefits to your business.

Telnyx vs. Twilio Feature Comparison

Both Telnyx and Twilio offer Elastic SIP Trunking, Programmable Voice and Messaging APIs to enable business communications. Let’s take a look at the key differences between the two in terms of their product offering, feature sets, and pricing.

Elastic SIP Trunking Comparison

Telnyx and Twilio are both popular providers for Elastic SIP Trunking services, but their products differ in some fundamental ways. The table below outlines some key differences and the impact they can have on your experience.

Telnyx vs. Twilio: Elastic SIP Trunking
TelnyxTwilio
Network TypePrivate network
Our global IP network was designed from the ground up for real-time voice and data communications, so your calls are crystal-clear and secure, with super low latency.
Public internet
The internet was not built for real-time communications, and it shows—with high latency, packet loss, and poor security causing endless call quality issues.
Network OwnershipFully owned
We control our infrastructure, so we control routing, quality, and traffic for high-quality calls and low post-dial delay.
Network reseller
Using other providers’ servers and middlemen for routing and telephony leads to persistent routing and quality issues.
Cloud Provider CoverageMulti-cloud
Our network points of presence leverage AWS, Google Cloud and Azure for added redundancy.
Single-cloud
Relying solely on one cloud provider for all network services increases the risk of network failure.
Guaranteed Uptime SLA 99.999%
We guarantee five-nines of uptime thanks to our superior network and support.
99.95%
The equivalent of more than 21 minutes of downtime every single month.
Number InventoryDeep number inventory
Thanks to our licensed carrier status in 25+ countries and close partnerships with Tier-1 carriers in 140+ countries.
Indirect number inventory
Numbers from Twilio are subject to significant markups and restrictions from middlemen.
Number PortingFastPort®
Automated self-service porting with real-time data validation and on-demand activation.
Manual porting
Document-heavy, opaque porting process that can take up to four weeks.
Carrier StatusLicensed carrier
In 25+ countries, ensuring full regulatory compliance and access to local telephony assets.
Not a licensed carrier
No guarantee of regulatory compliance and restrictions on number access and telephony operations.
Volume DiscountsAutomatic tiered volume discounts
Triggered automatically as you scale, no negotiation required.
No auto-triggered volume discounts for SIP trunking
You’re forced into a sales funnel to get a fair price.
Network TroubleshootingDirect troubleshooting
Telnyx owns its network, so can diagnose, trace and solve rare routing and call failure issues in a matter of minutes, without needing to wait on a carrier’s response.
Indirect troubleshooting
No network ownership, so diagnosing call failures and persistent routing issues means working with a variety of carriers, slowing down time to resolution.

Key Elastic SIP Trunking Features Explained

Network Type

Most SIP trunking providers, including Twilio, are built on the public internet, exposing their customers’ communications to the internet’s many weaknesses in terms of security, quality, and latency of voice traffic. Telnyx has its own private IP network, purpose-built for communications traffic, with multiple points of presence across the globe. This has several key benefits compared to the public internet:

  • The internet was not built for real-time communications. Working with a SIP trunking provider that has a purpose-built IP communications network ensures that packet loss and latency are kept to a minimum, so your calls are crystal-clear.
  • The public internet is insecure. Malicious actors have much more difficulty targeting communications on a secure, private network, especially when customers can choose to enable encryption of their SIP signaling and media streaming.
  • The internet can be unreliable, with no uptime guarantees from any given carrier or cloud provider. Private multi-cloud networks with built-in redundancy can offer much more reliable service, and some providers even guarantee minimum levels of uptime for their customers.

Network Ownership

Scaling your organization’s voice connectivity globally can cause issues in working with local telcos all over the world, in countries with varying regulatory landscapes and policies. If a SIP trunking provider maintains relationships with a wide range of carriers across the globe, their customers can enjoy smoother global scaling as these interoperability and regulatory issues are minimized.
Even more desirable is a SIP trunking provider with licensed carrier status all over the world. This status verifies that a SIP trunking provider complies with all regulatory requirements in the country of issuance, and allows the provider full access to local telephony assets like phone numbers. This can avoid frustrating regulatory back-and-forth between customers, SIP trunking providers, and local carriers and regulatory bodies, making global communications much more accessible.

Configuration and Monitoring

Good SIP trunking providers give you the freedom to configure your communications just how you like them, including setting up custom call routing, choosing from various high-definition media streaming codecs, scaling up and down capacity, configuring billing plans, and blocking and whitelisting international destinations.
Even better SIP trunking providers will have a customer portal that allows their customers to configure all of these settings and more in one intuitive user interface. This UI may also include advanced monitoring and reporting features, allowing customers to see their traffic statistics in real-time and analyze their usage in detail.
The best SIP trunking providers will provide all of this functionality while also allowing customers to interact with their services programmatically through an API. This enables customers to automate large parts of their communication systems including number porting, capacity scaling, reporting and monitoring.
Detailed real-time usage reports are available in the Telnyx portal, or via API.

Number Porting

Porting numbers between carriers can be incredibly frustrating. The standard industry porting process involves multiple emails, a lot of wasted time, and eventually rejected port requests. That's why Telnyx built FastPort® — a seamless, hassle-free porting solution designed to save users time and money.
Our easy-to-use portal and API streamline the process, giving you back valuable time to focus on growing your business. FastPort® removes any need for you to communicate with the losing carrier. Using the Telnyx Portal, you can bulk port all your phone numbers in just a few clicks. Or, integrate with the Telnyx API to uncover all the benefits of our porting process within your own solution, and deliver an exceptional initial customer experience.

Bottom Line: When it comes to choosing a SIP Trunking provider, call quality and reliability is everything. With that in mind, the choice is obvious. Telnyx’s unique carrier infrastructure, tier-1 interconnects and points of presence at major hubs around the world means better speed, security and reliability than Twilio can deliver, all at significantly lower costs.

Programmable Voice API Comparison


In a nutshell, a voice API enables an application to programmatically make, receive and manage calls—without having to interface directly with the PSTN. You can also use a voice API to route voice calls with global reach to phones, browsers, SIP domains and mobile applications.
Both Telnyx and Twilio offer voice APIs—the Telnyx voice API product is Call Control whereas Twilio refers to the product as Programmable Voice. The differences we discussed in the Elastic SIP Trunking section around network, numbers, porting and pricing all apply here. In addition, you should consider these factors when comparing voice APIs, and the impact they have on developer and end user experience.

Telnyx vs. Twilio: Programmable Voice API
TelnyxTwilio
Latency<1s response time
We use an edge-stack approach to route your data via the closest server to your application to deliver market-leading latency.
3s+ response time

Twilio has a greater reliance on the public internet. The result is noticeably higher latency levels with less consistency.
Real Time CommandsReal time communications
The Telnyx Call Control API can receive real-time commands throughout the call for interactive command and control.
Scripted communications
TwiML requires pre-scripted workflows at the start of the call, meaning real-time decision making and control just aren’t possible.

Key Call Control Features Explained

Global Audio Conferencing

Using the Telnyx voice API, you can embed audio conferencing capabilities into your applications. This enables your application to connect people and teams globally, with up to 250 participants and highly configurable behavior.
For example, you can specify hosts that control global conference behavior, play sounds when participants join and leave, define a length of time after which the conference automatically ends, mute and unmute or hold and unhold participants, and much more.
The Telnyx Developer Center includes tutorials developed for current Twilio users to move their TwiML conferencing to Telnyx with ease.

Media Streaming

Media Streaming (sometimes called media forking) enables your application to deliver calls while simultaneously duplicating call media to multiple recipients. The moment the call is established, the Telnyx voice API takes the call media and forks it. Call media can be duplicated, delivered, analyzed and returned in real time. And the second recipient never occupies the call stream, so you never have to worry about degraded quality or dropped connections.
Using Media Streaming, you can build next-gen features into your application, like sentiment analysis, conversational AI, fraud detection, call transcriptions and voice biometrics.

Text-to-Speech

Text-to-speech (or TTS), is a form of speech synthesis that converts text into spoken voice output. First, it’s an accessibility feature for customers with disabilities which makes automated customer service systems usable. However, even customers who don’t need text-to-speech for accessibility often prefer text-to-speech options so that it’s easier to interact with your IVR on the go.
Many programmable voice APIs incorporate text-to-speech technology for this reason. The Telnyx solution is powered by Amazon Polly and allows you to speak dynamic text in 29 different languages and accents.
You can find detailed API reference documentation in the Telnyx Developer Center.

Smart IVR

Using a programmable voice API, you can build a multi-level IVR to intelligently route your call flows. Smart IVR has enough menu options and interactive capabilities to handle simple customer service tasks without the aid of a human representative. Your programmable voice API should enable you to build a customer-first IVR that leverages AI technologies, intelligent call routing, omnichannel experiences, text-to-speech capabilities and call recording.

Answering Machine Detection

Answering Machine Detection (or AMD) can tell you in real time whether a call has been answered by a human or a machine, so you can tailor your experience accordingly. Outbound calling use-cases where Answering Machine Detection is particularly important include following up on potential leads, providing customers with critical updates or collecting information via voice surveys.
The Telnyx voice API offers industry leading accuracy of over 97%, whereas Twilio’s version has an accuracy level of 95%.

Bottom Line: Telnyx and Twilio both offer feature-rich voice APIs, but the Telnyx API gives developers more flexibility and control, enabling granular customization. If you’re looking for a provider that offers high uptime, low latency and great support, all at significantly lower costs—look no further than Telnyx.

Messaging Comparison (SMS API)

SMS APIs allow developers to build powerful messaging capabilities into their applications that increase customer engagement, instead of needing to have a deep understanding of telecoms. By being highly configurable, easily consumable, scalable and cost effective, SMS APIs give developers the ability to focus on building the two-way communication experience that customers engage with most.
Telnyx and Twilio both offer messaging APIs to meet these needs. Let’s take a look at the differences between their solutions.

Telnyx vs. Twilio: Messaging API
TelnyxTwilio
Number PortingFastPort®
Automated self-service porting with real-time data validation and on-demand activation.
Manual porting
Document-heavy, opaque porting process that can take up to four weeks.
Pricing Structure Free to receive
There’s no charge to receive local number SMS, and they’re just $0.0025 to send (up to 70% less than Twilio).
Pay to receive
Twilio charges $0.0075 to send and receive SMS, which can limit your ability to scale cost effectively.

Key SMS Features Explained

Hosted SMS

Did you know that nearly 78% of people would like to have a text conversation with a business? And, nearly one third of consumers (32%) have tried to text a business and never received a text back. That’s where hosted SMS comes in. Hosted SMS allows businesses to SMS-enable their existing phone numbers without having to make any changes to their existing voice setup, or change providers.

Number Pool

Number Pool is a feature designed to enhance message deliverability. When sending texts, numbers will be automatically selected from a pool associated with your messaging profile, maintaining balance across numbers to ensure higher delivery rates across all carriers.
Within the Telnyx portal, users can enable Number Pool, Geomatch, Sticky Sender, and view Message Engagement reports.

Geomatch

When customers are dealing with a local business, they expect to see a local number. Geomatch will automatically send messages from a number that matches the local area code of the recipient from within your pool of numbers. So, you can establish trust quickly—better engaging users with a more tailored, local experience.

Sticky Sender

Using Sticky Sender, businesses can send every message to their customer from the same number—building familiarity and trust into their communications. As a result, the customer is far more likely to open, read and engage with the message, and less likely to dismiss it as spam.

Metrics and Reporting

Real-time metrics are critical to understanding business performance. Being able to get granular delivery reports, track the health of your numbers and understand how your messages are being engaged with by tracking click-through-rates—are all features available from Telnyx, via the Portal or API.

Bottom Line: Telnyx and Twilio both offer features that enhance message deliverability and provide delivery metrics. But, Telnyx has several advantages; Telnyx is a licensed carrier with an automated process that takes the headache out of porting numbers. And, Telnyx can save you up to 70% on messaging without sacrificing features or quality. It's a no-brainer.

Telnyx Support vs. Twilio Support

It’s impossible to overestimate the importance of good support when it comes to your communications provider. That’s why Telnyx is proud to rank highest in support vs. all other cloud communication platforms, according to G2 user reviews.
Here’s a quick comparison of our service offering that explains why we consistently rank higher than Twilio in terms of both support and user results.

Telnyx vs. Twilio: Support
TelnyxTwilio
Support AvailabilityFree 24/7 support
Our best-in-class 24/7 NOC support is available by phone and email for every single one of our customers, so your issues never need to wait until Monday.
Pay to play support
Email-only support, only during business hours as standard. Further help is behind a paywall, with a $1500 minimum extra charge for 24/7 phone support.

Telnyx Pricing vs. Twilio Pricing

Price factors into every business decision. So, let’s compare Telnyx and Twilio prices across elastic SIP trunking, programmable voice and messaging.

Elastic SIP Trunking Pricing

Telnyx vs. Twilio: Elastic SIP Trunking Pricing
TelnyxTwilio
Local Outbound Calls (US48)$0.005
/ min
$0.007
/ min
Local Inbound Calls$0.0035
/ min
$0.0045
/ min
Toll-Free Outbound CallsFREE$0.007
/ min
Toll-Free Inbound Calls$0.015
/ min
$0.018
/ min

Programmable Voice Pricing

Telnyx vs. Twilio: Programmable Voice Pricing
TelnyxTwilio
Local Outbound Calls$0.0070
/ min
$0.0130
/ min
Local Inbound Calls$0.0055
/ min
$0.0085
/ min
Toll-Free Outbound Calls$0.0020
/ min
$0.0130
/ min
Toll-Free Inbound Calls$0.0170
/ min
$0.0220
/ min
Browser, App or SIP Interface Outbound Calls$0.0020
/ min
$0.0040
/ min
Browser, App or SIP Interface Inbound Calls$0.0020
/ min
$0.0040
/ min

SMS Pricing

Telnyx vs. Twilio: SMS Pricing
TelnyxTwilio
Local Outbound SMS$0.0025$0.0075
Local Inbound SMSFREE$0.0075
Toll-Free Outbound SMS$0.0055$0.0075
Toll-Free Inbound SMS$0.0055$0.0075
Short Code Outbound SMS$0.0070$0.0075
Short Code Inbound SMS$0.0070$0.0075

MMS Pricing


Telnyx vs. Twilio: MMS Pricing
TelnyxTwilio
Local Outbound MMS$0.0120$0.0200
Local Inbound MMS$0.0050$0.0100

Note: Twilio pricing is based on information from twilio.com/pricing. Voice pricing assumes flat-rate billing method is selected in the Telnyx Mission Control Portal. Messaging pricing does not include carrier fees, which are not governed by Telnyx or Twilio. All information correct as of 07/02/2020. Telnyx is not associated with, sponsored or endorsed by Twilio.

Bottom Line: Twilio relies on aggregators for phone numbers and core communications functionality, resulting in higher markups. Because Telnyx maintains complete control over its network and phone numbers, we’re able to cut out the middleman and pass those savings directly to our customers.

Ready to give Telnyx a test run? Sign up to our portal to get started. Or, speak to one of our experts to find out how Telnyx can support your business communications.
Share on Social

Worth checking out

By using the site, you agree to our use of cookies. Accept and close Find out more here.