ASR biasing options (per-step)
Advanced steps support structured ASR biasing modes for common input types:| Mode | Use case |
|---|---|
| Alphanumeric | Booking references, confirmation codes |
| Name spelling | Phonetically spelled names |
| Numeric | Ages, short numbers |
| Party size | Group booking numbers |
| Precise date | Specific calendar dates |
| Relative date | Flexible time references (“next Tuesday”) |
| Single number | One-digit responses |
| Time | Spoken times |
| Yes/No | Confirmation-style responses |
| Address | Postcodes, street names |
| Custom keywords | Your own keyphrases |
DTMF configuration (per-step)
Advanced steps can collect DTMF (touch-tone) input. Configure:| Setting | Description |
|---|---|
| Enable DTMF | Toggle on to accept keypad input |
| Inter-digit timeout | How long to wait between digits (default 3 seconds) |
| Max digits | Maximum number of digits to collect (1-32) |
| End key | Which key signals input is complete (#, *, or none) |
| Collect while speaking | Whether to accept input while the agent is talking |
| Mark as PII | Flag the collected input as personally identifiable information |
Rich text references
Advanced step prompts support inline references using template tags:| Reference type | Syntax | Purpose |
|---|---|---|
| Transition function | {{ft:functionId}} | Call a transition function from the prompt |
| Global function | {{fn:functionId}} | Call a global function |
| SMS template | {{sms:templateId}} | Send an SMS template |
| Handoff | {{ho:destinationId}} | Trigger a handoff |
| Variant attribute | {{va:attributeId}} | Insert a variant attribute value |
Related pages
No-code flows overview
Step types, routing logic, and canvas controls.
Entities
Configure entity types and validation for your flows.
ASR biasing
Improve transcription accuracy for structured inputs in flow steps.