TwiML
Twilio Markup Language, XML for call instructions
Episodes
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#4569: Dialing Without a Switchboard: Twilio Number NormalizationTwilio expects E.164, but Israel dials 0-3-... Here's what breaks when you become your own carrier. -
#4499: Twilio for Small Business: IVRs, SIP & Phone TreesHow to build professional phone systems with Twilio — IVRs, round-robin routing, voicemail transcription, and SIP setup.