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 January 2nd to April 2nd, 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 275ms, a p90 of 451ms, and a p99 of 662ms from January 2nd to April 2nd. 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% |
|---|---|---|---|---|---|
| 0.42% | 24.57% | Feb 20 | 57 | 34 |
| — | — | — | — | — |
Averaged across January 2nd to April 2nd, Telnyx shows a 0.42% 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
Started Apr 3, 2026 — Resolved Apr 3, 2026
Apr 3, 10:39 UTC Resolved - This incident has been resolved.Apr 3, 09:45 UTC Monitoring - A fix has been implemented and we are monitoring the results.Apr 3, 09:03 UTC Investigating - We are aware of instability affecting our Wireless Products API endpoints. The incident began at approximately 08:25 UTC. Our engineering team is actively investigating the root cause. Further updates will be provided as information becomes available.
Started Apr 2, 2026 — Resolved Apr 2, 2026
Apr 2, 17:00 UTC Completed - The scheduled maintenance has been completed.Apr 2, 12:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Apr 2, 11:12 UTC Scheduled - Engineering will run updates on voice services on all regions.
Ongoing since Apr 2, 2026
Apr 2, 13:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Apr 2, 11:13 UTC Scheduled - Our Telephony Engineers will be performing an update on our Voice Services across all regions Impact: This update is not expected to disrupt service. Action Required: If you experience any audio issues or dropped calls during this maintenance window, please report them immediately to Telnyx Support.
Started Apr 2, 2026 — Resolved Apr 2, 2026
Apr 2, 05:30 UTC Completed - The scheduled maintenance has been completed.Apr 2, 04:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Apr 1, 12:53 UTC Update - We will be undergoing scheduled maintenance during this time.Mar 25, 09:44 UTC Update - We will be undergoing scheduled maintenance during this time.Mar 31, 05:30 UTC Scheduled - The Telnyx Wireless teams will perform upgrades to mobile data infrastructure in the North America reg
Started Apr 1, 2026 — Resolved Apr 1, 2026
Apr 1, 14:00 UTC Completed - The scheduled maintenance has been completed.Mar 31, 18:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.Mar 31, 17:06 UTC Scheduled - Our Telephony Engineers will be performing an update on our Voice Services servers servers across all regions Impact: This update is not expected to disrupt service. Action Required: If you experience any audio issues or dropped calls during this maintenance window, please repo
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 275ms. We don't yet have enough data for Vonage to make a direct comparison.
Which is more reliable, Telnyx or Vonage?
From January 2nd to April 2nd, Telnyx showed an error rate of 0.42%. 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 January 2nd to April 2nd. Telnyx is currently seeing declining volume. 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.