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Twilio

Have you built something with the Twilio API? Got questions about how to work with the API? Share them here with the #twilio tag.

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Twilio's Transit CallerID Sunset on May 31 — Your Voice Flows Already Look Broken in Six Countries and You Probably Don't Know

Twilio's Transit CallerID Sunset on May 31 — Your Voice Flows Already Look Broken in Six Countries and You Probably Don't Know

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10 min read
Twilio A2P 10DLC Campaign Registration Will 400 on June 30 — Two New Required Fields Most SaaS Apps Are Missing

Twilio A2P 10DLC Campaign Registration Will 400 on June 30 — Two New Required Fields Most SaaS Apps Are Missing

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7 min read
How to test Twilio message delivery failures locally

How to test Twilio message delivery failures locally

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3 min read
Twilio Is Killing api.de1.twilio.com on April 28 — And the Regional Domains Never Actually Routed Regionally

Twilio Is Killing api.de1.twilio.com on April 28 — And the Regional Domains Never Actually Routed Regionally

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5 min read
Sending SMS with Ruby and Twilio

Sending SMS with Ruby and Twilio

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2 min read
I compared building call tracking on Twilio vs buying CallRail. Here's what the math looks like.

I compared building call tracking on Twilio vs buying CallRail. Here's what the math looks like.

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2 min read
Twilio Phone Agent with AssemblyAI Universal-3 Pro Streaming

Twilio Phone Agent with AssemblyAI Universal-3 Pro Streaming

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2 min read
How to Test Twilio Webhooks with HookCap

How to Test Twilio Webhooks with HookCap

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5 min read
Twilio's API: The Other Gold Standard and Why It's Stripe's True Equal

Twilio's API: The Other Gold Standard and Why It's Stripe's True Equal

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10 min read
Your First Twilio Webhook in Production — What the Docs Don’t Tell You

Your First Twilio Webhook in Production — What the Docs Don’t Tell You

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5 min read
I Tested Our WebSocket Audio Pipeline with WebRTC. Here's Why I Switched It Back.

I Tested Our WebSocket Audio Pipeline with WebRTC. Here's Why I Switched It Back.

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4 min read
From 7 Seconds to 500ms: The Voice Agent Optimization Secrets

From 7 Seconds to 500ms: The Voice Agent Optimization Secrets

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14 min read
I Built an AI Agent That Calls Me on the Phone

I Built an AI Agent That Calls Me on the Phone

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5 min read
Twilio WhatsApp Is Useless (and the 30 minute guide to do it yourself)

Twilio WhatsApp Is Useless (and the 30 minute guide to do it yourself)

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8 min read
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