Telnyx

Telnyx

Cloud-based voice, messaging, and wireless services

Overview

Telnyx provides cloud-based communication services for businesses, including voice, messaging, wireless, and fax, accessed through its Mission Control Portal. It operates on a pay-as-you-go model where customers are billed for usage such as calls, texts, and data. The company differentiates itself by owning and operating a global IP network, which improves performance, reliability, and security, along with extensive support resources for customers. Its goal is to enable businesses of all sizes to communicate reliably and securely over the internet through scalable, usage-based services.

About Telnyx

Simplify's Rating
Why Telnyx is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Enterprise Software

Company Size

201-500

Company Stage

Seed

Total Funding

$1M

Headquarters

Chicago, Illinois

Founded

2009

People at Telnyx

People at Telnyx who can refer or advise you

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Simplify's Take

What believers are saying

  • WhatsApp Business Calling enables AI voice agents across 140+ countries, expanding Telnyx's addressable market for enterprise AI.
  • LiveKit on Telnyx beta waives session fees and delivers production-grade voice AI with sub-200ms latency and enterprise compliance.
  • ClawdTalk demonstration proves Telnyx can bridge AI agents to public phone networks, solving real-time execution challenges like latency.

What critics are saying

  • TeamPCP PyPI supply-chain attack compromised Telnyx's Python SDK, risking critical credential exfiltration and long-term trust collapse.
  • CALLR's native Voice AI agents undercut Telnyx's strategy by enabling 2-week SaaS deployments versus Telnyx's 3-6 month third-party integrations.
  • WhatsApp Business Calling allows rival AI platforms to bypass Telnyx's programmable voice layer, reducing its 140-country market share.

What makes Telnyx unique

  • Telnyx owns its global carrier network end-to-end, delivering carrier-grade voice quality under 200ms latency.
  • Telnyx provides full-stack Voice AI infrastructure with colocated GPU inference, offering 50% lower STT/TTS costs.
  • Telnyx partners with AgentMail to give every AI agent a default durable email inbox for identity and verification.

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Funding

Total Funding

$1M

Below

Industry Average

Funded Over

1 Rounds

Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Below Average

Industry standards

$3.3M
$1.5M
Slack
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood

Benefits

Health Insurance

401(k) Company Match

401(k) Retirement Plan

Unlimited Paid Time Off

Share Options

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

-1%

2 year growth

-2%
AgentMail
Jun 23rd, 2026
Every AI agent that signs up for Telnyx gets an inbox.

Every AI agent that signs up for Telnyx gets an inbox. June 23, 2026 AgentMail has partnered with Telnyx. When an AI agent signs up for Telnyx without an email address of its own, it now gets one by default: a Telnyx Agent Inbox, powered by AgentMail. Engineering partnership agent-infrastructure agent-identity AgentMail has partnered with Telnyx. When an AI agent signs up for Telnyx without an email address of its own, it now gets one by default: a Telnyx Agent Inbox, powered by AgentMail. The two sit naturally together. Telnyx builds the stack an agent needs to operate: phone numbers, messaging, voice, and inference, all through one API. AgentMail builds the identity layer: an inbox an agent owns and can send and receive from. An agent doing real work needs both the means to act and somewhere to be reached, so an email now comes with the account. What telnyx does. Telnyx is a carrier-owned communications and AI platform. They own the full stack, from the bare-metal fiber and the mobile core up to LLM inference, and they put it behind one API: phone numbers, SMS, voice, speech-to-text, text-to-speech, and the voice-AI agents built on top. Most providers rent the network they run on. Telnyx owns theirs, which is how they hold carrier-grade voice quality at round-trip times under 200ms. Telnyx lists OpenAI, IBM, Cisco, and Microsoft among its customers. Their bet is that agents, not only developers, will provision this stack. An agent that needs to send a message, buy a number, place a call, or run inference can set it up itself. And when that agent shows up without an email of its own, Telnyx hands it one at signup. AgentMail provisions the mailbox underneath. Why agents need email. To be a first-class user of the internet, you need an email address. It is the credential everything else hangs off. You sign up for services with it, confirm accounts through it, and receive the verification codes, password resets, receipts, and payment confirmations in it. No inbox, no account. The web has worked this way for thirty years, and the arrival of agents has not changed it. Agents have been second-class in that system. They could send, but they could not receive, so they leaned on a human's inbox to catch a code or a reply. That is not an identity, it is a dependency. AgentMail gives an agent its own address that sends and receives, holds across runs, and fires a webhook the moment a message lands. The agent stops borrowing a human's credentials and starts holding its own. What this unlocks. The immediate result is that an agent arriving on Telnyx without an email walks away with one, with nothing for a developer to wire up. It can be reached and replied to as itself, from the first second. The longer result is that the inbox is durable. The address outlasts any single task, so the codes, notices, and replies that arrive later route to a place the agent can read. The capabilities the agent provisions on Telnyx and the identity it carries from AgentMail stay attached to the same agent over time. Telnyx gives an agent the means to act. AgentMail gives it an address to act from. Agents that do real work need both. Building on Telnyx? Your agents get an inbox by default. Start at telnyx.com/sign-up. AgentMail gives your agents real inboxes. Create inboxes via API. Send and receive Emails with 0 complexity. Free to start.

The Associated Press
Apr 7th, 2026
EZdial.online integrates Telnyx for browser-based VoIP calling in MCA dialer platform

EZdial.online has integrated Telnyx as its Bring Your Own Carrier provider to power voice infrastructure for its browser-based dialer and CRM platform targeting the Merchant Cash Advance industry. The integration enables high-performance VoIP calling through Telnyx's global communications network. The partnership leverages Telnyx's WebRTC-based voice technology, allowing users to make calls directly from their browser without hardware or downloads. Key features include BYOC flexibility, browser-based calling, low latency and scalable infrastructure supporting single agents to multi-seat call centres. EZdial.online, developed by BFF Software, combines predictive dialling, power dialling, lead management and CRM integration in a single interface. The platform is now available to MCA brokers and sales organisations, with users able to connect their Telnyx account and begin dialling immediately.

The Associated Press
Apr 6th, 2026
Telnyx launches LiveKit platform with 50% lower AI voice costs and sub-200ms latency

Telnyx has launched LiveKit on Telnyx, a fully hosted platform for deploying voice AI agents with reduced costs and ultra-low latency. The platform allows developers to run existing LiveKit agents on Telnyx-owned infrastructure without code changes. By owning the entire infrastructure stack—carrier network, GPU clusters and telephony—Telnyx offers 50% lower speech-to-text and text-to-speech costs compared to LiveKit Cloud. The company is waiving session fees during the beta period, eliminating the current $0.01 per minute charge LiveKit customers typically pay. The platform achieves sub-200ms round-trip time by hosting speech models on colocated GPU infrastructure across 18 global points of presence. It includes enterprise telephony features and compliance standards including HIPAA, PCI and SOC 2. LiveKit on Telnyx is now available in beta.

Business Insider
Apr 6th, 2026
Telnyx launches "LiveKit on Telnyx" for deploying Voice AI agents with lower cost and ultra-low latency.

Telnyx launches "LiveKit on Telnyx" for deploying Voice AI agents with lower cost and ultra-low latency. Apr. 6, 2026, 01:00 PM AUSTIN, Texas, April 06, 2026 (GLOBE NEWSWIRE) - Telnyx, the trusted Voice AI infrastructure platform, today announced the launch of LiveKit on Telnyx, a fully hosted platform that runs LiveKit agents on Telnyx-owned infrastructure with dramatically lower costs, ultra-low latency, and enterprise telephony built in. LiveKit on Telnyx enables developers to deploy existing LiveKit agents without changing their code. Customers package their agent with a Dockerfile, deploy via API, and go live on Telnyx infrastructure. No servers to provision. No third-party vendors to manage. Infrastructure Ownership Changes the Economics Most voice AI platforms resell third-party APIs for speech and telephony, stacking margins at each layer. Telnyx owns the infrastructure at each level of the stack: carrier network, GPU clusters, and telephony. Telnyx allows LiveKit customers to deploy agents on Telnyx infrastructure, delivering savings on costs, as well as enhanced performance and reliability. Telnyx offers 50% lower speech-to-text (STT) and text-to-speech (TTS) costs vs. LiveKit Cloud on equivalent models, and promises no session fees during the beta period of LiveKit on Telnyx, which currently costs LiveKit customers $0.01/min per active session. Ultra-Low Latency Through Colocated Inference Telnyx hosts STT and TTS models on owned GPU infrastructure, colocated with global telephony points of presence. Audio never leaves the Telnyx network, eliminating the variable latency that comes from routing through external APIs. The result is sub-200ms round-trip time for conversations that feel natural. This dedicated compute layer ensures consistent performance at scale while maintaining the security and compliance standards that enterprise deployments demand. "Voice AI is moving from prototype to production," said David Casem, CEO and co-founder of Telnyx. "That transition demands infrastructure built for enterprise reliability and compliance. LiveKit on Telnyx gives developers the framework they know with the carrier-grade foundation that enterprise production deployments require." Carrier-Grade Telephony Built In Enterprise voice AI applications require sophisticated SIP capabilities including AMR-WB codec support, call recording, call transfers, and custom trunk configurations, with Telnyx, these capabilities are native, not integrated from third parties. "LiveKit created an excellent agent framework," said Jon Scalet, Technical Product Manager at Telnyx. "LiveKit on Telnyx extends it with the telephony infrastructure that enterprise deployments require, carrier-grade SIP, verified identity, and compliance built into every call." Availability LiveKit on Telnyx is available now in beta. Session fees are waived during the beta period. Existing LiveKit developers migrate in minutes, the agent code stays the same. About Telnyx Telnyx is the trust infrastructure powering the Voice AI economy. Telnyx owns its carrier network, holds telecom licenses in 30+ countries, and operates 18 global points of presence with colocated GPU infrastructure for edge inference. This single operational domain delivers sub-200ms round-trip time, A-level STIR/SHAKEN authentication, and enterprise compliance including HIPAA, PCI, SOC 2, and GDPR, ensuring AI agents are not just deployed, but answered and trusted. Learn more at telnyx.com. Markets Insider and Business Insider Editorial Teams were not involved in the creation of this post. Sponsored Financial Content

The Register
Mar 30th, 2026
Telnyx compromised in TeamPCP's second PyPI supply-chain attack after Trivy breach

A cybercrime group linked to the Trivy supply-chain attack has compromised Telnyx's Python SDK on PyPI, planting credential-stealing malware on developers' systems. Security firm Ox Security identified the attackers as TeamPCP, the same crew behind recent malicious LiteLLM packages. The compromised Telnyx versions (4.87.1 and 4.87.2) downloaded malware disguised as a .wav file that was decoded and executed on target machines. Telnyx, which sees over 34,000 weekly PyPI downloads, confirmed only its Python package was affected and has resolved the issue. The company recommends treating any environment running the affected versions as compromised and rotating exposed credentials. None of Telnyx's infrastructure, networking or other services were impacted.

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