Telnyx vs Vonage
Compare Telnyx and Vonage based on observed SMS API performance, features, and pricing
Live performance comparison
Real-world performance data from messages sent through Knock
We don't have enough message volume through Knock for Vonage to publish statistically meaningful benchmarks yet. The data below reflects Telnyx only. Comparison charts will appear once both providers have sufficient data.
| Provider | Message volume | Growth | Status page updates (30d) | Status page updates (90d) |
|---|---|---|---|---|
| <1M | 3rd of 7 ↑ | 25 | 25 |
| — | — | 0 | 0 |
From February 13th to May 14th, Knock routed <1M messages through Telnyx. Telnyx reported 25 status page updates over the last 90 days, while Vonage reported 0.
Response time
Response time measures how long each provider takes to accept an SMS API request from Knock, including connection overhead and any automatic retries. Lower values mean faster message hand-off.
Telnyx has a median response time (p50) of 219ms, a p90 of 389ms, and a p99 of 638ms from February 13th to May 14th. Comparison charts for Vonage will appear once enough data is available.
Error rate
Error rate tracks the ratio of 5xx responses and timeouts to total SMS API requests. Knock automatically retries failed requests, so transient provider errors rarely affect end-user delivery.
| Provider | Avg. daily error rate | Highest daily rate | Peak error date | Zero-error days | Days above 0.01% |
|---|---|---|---|---|---|
| 0.21% | 24.57% | Feb 20 | 57 | 26 |
| — | — | — | — | — |
Averaged across February 13th to May 14th, Telnyx shows a 0.21% daily error rate. Comparison data for Vonage will appear once enough message volume is available. Knock automatically retries failed requests to minimize the impact of transient errors on end-user delivery.
About these metrics: Data represents messages sent through Knock during the specified period. Response time measures time from Knock to provider acceptance. Error rate includes only provider 5xx responses and timeouts.
Recent Telnyx incidents
Recent status page incidents for Telnyx
Ongoing since May 28, 2026
THIS IS A SCHEDULED EVENT May 28, 09:00 - 11:00 UTCMay 11, 14:41 UTC Scheduled - Our Telephony Engineers will perform maintenance on our SIP proxy servers in the US region. Our TLS certificate for our SIP proxy server(s) of sip.telnyx.com (192.76.120.10 and 64.16.250.10) will be changed during this deployment. This is important for some customers who use an SBC (or other appliance) and have our certificate (or the CA certificate) loaded into the SBC. This information also applies to some custom
Ongoing since May 26, 2026
THIS IS A SCHEDULED EVENT May 26, 17:00 - 19:00 UTCMay 11, 14:32 UTC Scheduled - Our Telephony Engineers will perform maintenance on our SIP proxy servers in the Europe region. Our TLS certificate for our SIP proxy server(s) of sip.telnyx.eu (185.246.41.140 and 185.246.41.141) will be changed during this deployment. This is important for some customers who use an SBC (or other appliance) and have our certificate (or the CA certificate) loaded into the SBC. This information also applies to some
Ongoing since May 15, 2026
THIS IS A SCHEDULED EVENT May 15, 08:30 - 10:30 UTCMay 12, 16:23 UTC Scheduled - The Telnyx team will be performing maintenance on the network nodes carrying data traffic for IMSI1 sessions in the Americas. Connected devices may experienec a brief (about a minute) period of disconnection during this window.
Started May 14, 2026 — Resolved May 14, 2026
May 14, 13:00 UTC Completed - The scheduled maintenance has been completed.May 14, 12:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.May 14, 12:24 UTC Scheduled - Our Telephony Engineers will perform maintenance on our TeXML services in the Europe/US region. This maintenance should not disrupt service.
Ongoing since May 14, 2026
May 14, 11:03 UTC Identified - The issue partially persists and is being worked on by our engineers.May 14, 00:26 UTC Monitoring - A fix has been implemented and we are monitoring the results.May 13, 21:44 UTC Investigating - We've spotted that something has gone wrong. We're currently investigating the issue, and will provide an update soon. All cloud storage operations on buckets in us-central-1 might be not operational.
Recent Vonage incidents
Recent status page incidents for Vonage
No incidents reported in the last 90 days
Pricing comparison
| Provider | Plan | Per message | Monthly cost |
|---|---|---|---|
| Telnyx | Pay-as-you-go | $0.004 | $400 |
| Vonage | Pay-as-you-go | $0.0085 | $846 |
Telnyx
No free tier. Outbound SMS to US numbers costs $0.004 per message. Inbound messages are $0.004 each. Phone numbers start at $1.00/month for local numbers. Carrier surcharges are passed through at cost with no markup.
Vonage
Free trial with verified number restrictions. US outbound SMS costs $0.00846 per message. Inbound messages are $0.00679 each. 10DLC carrier fees apply for US A2P messaging.
US carrier surcharges
All US A2P SMS sent via 10DLC incurs mandatory carrier fees on top of the provider base rate. Most providers pass these through at cost.
| Carrier | Outbound SMS | Inbound SMS |
|---|---|---|
| T-Mobile | $0.0045 | $0.0025 |
| AT&T | $0.003 | $0.003 |
| Verizon | $0.004 | $0.00 |
| US Cellular | $0.005 | $0.00 |
Pros and cons
Telnyx
Vonage
Pros
- Among the lowest per-message rates for US domestic SMS
- Private IP network provides lower latency than providers using the public internet
- Transparent, pay-as-you-go pricing with no monthly minimums
- Strong developer experience with well-documented APIs and SDKs
Pros
- Adaptive routing with automatic carrier failover for improved deliverability
- Built-in Verify API for 2FA/OTP without extra development effort
- Competitive per-message pricing with simple JSON-over-HTTP API patterns
- Global coverage across 200+ countries with local number support
Cons
- Smaller community and ecosystem compared to Twilio
- No free trial credits for new accounts
- Feature set is narrower than full-suite platforms like Twilio
Cons
- Documentation trails market leaders, especially for complex scenarios
- Platform analytics are basic, providing only delivery receipts and usage logs
- Premium support with 24/7 phone access is expensive, starting at $3,300/month
Frequently asked questions
What is the difference between Telnyx and Vonage?
Telnyx is a developer-first communications platform with competitive pricing and a private IP network for reliable SMS delivery. Vonage is a communications platform with adaptive carrier routing, built-in verification APIs, and competitive per-message pricing. Telnyx is best suited for cost-effective developer sms, while Vonage is geared toward cost-effective global sms.
Which is cheaper, Telnyx or Vonage?
No free tier. Outbound SMS to US numbers costs $0.004 per message. Inbound messages are $0.004 each. Phone numbers start at $1.00/month for local numbers. Carrier surcharges are passed through at cost with no markup. Free trial with verified number restrictions. US outbound SMS costs $0.00846 per message. Inbound messages are $0.00679 each. 10DLC carrier fees apply for US A2P messaging. The best value depends on your sending volume and destination countries.
Which is faster, Telnyx or Vonage?
Based on real-world data from Knock, Telnyx has a median SMS API response time (p50) of 219ms. We don't yet have enough data for Vonage to make a direct comparison.
Which is more reliable, Telnyx or Vonage?
From February 13th to May 14th, Telnyx showed an error rate of 0.21%. We don't yet have enough data for Vonage to compare reliability directly. Knock automatically retries failed requests to minimize the impact of transient errors.
Which is more popular, Telnyx or Vonage?
On the Knock platform, Telnyx handled <1M messages from February 13th to May 14th. Telnyx is currently trending upward in adoption. We don't yet have enough data for Vonage to compare popularity.
Can I use both Telnyx and Vonage together?
Yes. Knock enables you to integrate multiple SMS providers into a single notification workflow. You can use Telnyx and Vonage side by side, route traffic between them, or migrate from one to the other without changing your application code.
What are the main pros and cons of Telnyx vs Vonage?
Telnyx strengths include among the lowest per-message rates for us domestic sms and private ip network provides lower latency than providers using the public internet. Vonage strengths include adaptive routing with automatic carrier failover for improved deliverability and built-in verify api for 2fa/otp without extra development effort. On the other hand, Telnyx drawbacks include smaller community and ecosystem compared to twilio, while Vonage drawbacks include documentation trails market leaders, especially for complex scenarios.
Use either provider with Knock
Knock enables you to integrate Telnyx, Vonage, or any combination of SMS providers into a single notification workflow. Manage templates, orchestrate cross-channel delivery, and switch providers without changing your code.