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Glossary

The terms used across these docs.

Terms

Agent
A configured voice agent: its prompt, persona, variables, knowledge base and tools.
Campaign
A batch of calls made from a list, inside a calling window you choose.
Extraction
Fields that Blu fills in from each conversation, such as "visit booked" or "reason for cancelling".
Knowledge base
Documents and FAQs the agent answers from during a call.
Outcome
The result of a call: what happened, and what the customer agreed to.
Persona
The agent's name, tone and manner on the phone.
Prompt
The instructions that set what the agent says, aims for and handles.
SIP
The standard protocol that lets Blu connect to telephony providers beyond the ones we work closely with.
Speech-to-speech
A model that listens and replies in one pass, rather than chaining transcription, a language model and text-to-speech.
Tool call
A request the agent makes to your API in the middle of a call, such as checking stock.
Variable
A per-call value, such as a name or offer, that fills a placeholder in the prompt.
Webhook
A URL you give Blu. Blu sends each call's status and outcome there when the call ends.