twilio-customer-support-architect

Build an IVR using TwiML verbs like Gather, Say, and Play, or use Twilio Studio for multi-step branching flows. Studio is recommended when non-developers need to modify flows, while custom TwiML suits simple menus under three levels.

Use Studio for multi-step branching logic, rapid prototyping, and flows that non-developers maintain. Use custom TwiML when your team wants full code control, flows are simple, or you need dynamic behavior from external APIs.

Use TaskRouter whenever you have multiple agents needing skills-based routing, queue management, and reservation lifecycle handling. For low volume under 50 calls per day, simple TwiML with Dial may suffice instead.

Flex builds on TaskRouter for agent routing, so contact center deployments with a browser-based agent desktop use both together. Small teams under 10 agents can use TaskRouter alone without Flex, letting agents answer on their own phones.

Coach audio is not captured in conference recordings, so supervisor coaching sessions are excluded by design. For dual-channel recordings of agent and caller, use Dial with record="record-from-answer-dual" rather than the Record verb, which is voicemail-style only.

Twilio Functions allow 30 concurrent executions per service with a 10-second timeout and 256 MB memory. At 50 simultaneous calls with six status callbacks each, use the thin-receiver pattern: receive the callback, queue it, return 200 immediately, and process asynchronously.