> ## Documentation Index > Fetch the complete documentation index at: https://blackbox.dasha.ai/llms.txt > Use this file to discover all available pages before exploring further. # Glossary > Definitions for Dasha BlackBox platform terminology. Quick reference for agents, conversations, tools, webhooks, and voice AI concepts. Quick reference for Dasha BlackBox platform terminology. *** ## Core Concepts ### Agent AI voice assistant that handles conversations autonomously. Configured with a system prompt, LLM, voice, and optionally tools. Agents can receive inbound calls and make outbound calls. ### Conversation Single interaction between an agent and a person. Each conversation has a unique ID and produces a transcript. ### Tool Action an agent can take mid-conversation. Tools call your API to perform operations like checking order status, booking appointments, or looking up customer data. Defined with JSON Schema for parameters. ### Webhook HTTP notification sent to your server when events occur. Events include call started, call ended, tool execution requested, and transcription updates. *** ## Voice & Speech ### TTS (Text-to-Speech) Technology that converts agent text responses into spoken audio. Dasha BlackBox supports multiple providers: ElevenLabs, Cartesia, Inworld, and LMNT. ### STT (Speech-to-Text) Also called ASR (Automatic Speech Recognition). Converts caller speech into text that the agent can process. Handles accents, background noise, and real-time transcription. ### ASR (Automatic Speech Recognition) See STT. The technology that transcribes spoken words into text. ### Voice ID Identifier for a specific voice within a TTS provider. Each provider offers different voices with varying characteristics. ### Pronunciation Dictionary Custom rules for how the agent pronounces specific words. Useful for brand names, technical terms, and uncommon words. *** ## LLM Configuration ### LLM (Large Language Model) AI model that generates agent responses. Dasha BlackBox supports OpenAI, Anthropic, Google, Azure, Groq, and Reflex-1 models. ### Reflex-1 Dasha's in-house LLM optimized for real-time voice conversations with very fast response times. ### System Prompt Instructions that define agent behavior, personality, and capabilities. The foundation of agent configuration. ### Temperature LLM setting controlling response randomness. Lower values (0.3-0.5) produce consistent responses; higher values (0.7-0.9) produce more varied responses. *** ## Telephony ### SIP (Session Initiation Protocol) Standard protocol for voice calls over internet. Used for connecting to phone systems. ### SIP Trunk Connection between Dasha BlackBox and your phone system. Enables inbound and outbound calls through your existing phone numbers. ### SIP Credentials Organization-level authentication settings for your SIP trunk provider. Stores server address, username, password, and transport protocol. Multiple phone numbers can share the same credentials. ### Twilio Provider Managed SIP integration that automatically creates and configures SIP trunks. Simplifies setup by handling credential management and phone number provisioning through your Twilio account. ### CPS (Calls Per Second) Rate limit for simultaneous call attempts through a SIP trunk. Configured via `cpsLimit` to prevent overloading your telephony provider. ### E.164 Format International phone number format. Includes country code with + prefix: +12025551234. ### IVR (Interactive Voice Response) Automated phone menu system ("Press 1 for sales"). Dasha BlackBox agents can detect and navigate IVR systems during outbound calls. ### DTMF (Dual-Tone Multi-Frequency) Touch-tone signals generated when pressing phone keys. Used for navigating phone menus. *** ## Call Handling ### Inbound Call Call received by the agent. Caller dials a phone number connected to your agent. ### Outbound Call Call initiated by the agent. Scheduled via API to contact a recipient. ### Phone Number Linking Connecting a phone number to an agent. Use `inbound` mode for receiving calls or `replaceOutbound` mode for caller ID on outgoing calls. ### Caller ID Phone number displayed to recipients during outbound calls. Set by linking a phone number with `replaceOutbound` mode. ### Call Priority Priority level for outbound calls: `low`, `medium`, `high`, or `critical`. Higher priority calls are processed first in the queue. ### Business Hours Schedule defining when an agent accepts inbound calls. Calls outside business hours can be rejected or handled differently. ### Warm Transfer Transfer where the agent briefs the human operator before connecting the caller. Operator receives context about the conversation. ### Three-Way Announcement Message played to the caller during warm transfer while the agent briefs the operator. Can be static text or dynamically generated using `smartV1` mode. ### Cold Transfer Direct transfer to a human operator without briefing. Faster but requires caller to re-explain their situation. ### HTTP Transfer Dynamic transfer routing via webhook. Your server determines the transfer destination based on real-time data. ### Call Recording Audio recording of the conversation. Enabled per-agent and stored for later review. ### Pre-Conversation Media Audio file played before the agent speaks. Configured separately for inbound, outbound, and web calls. Useful for greetings, disclaimers, or hold music. ### Noise Suppression Krisp-powered audio filtering that removes background noise from calls. Configured with a level from 0 (off) to 100 (maximum). Incurs additional per-minute fee. *** ## Integrations ### MCP (Model Context Protocol) Protocol for connecting external data sources and tools to agents. Enables dynamic capabilities without custom webhook development. ### Knowledge Base External information source connected to an agent. Agents can query knowledge bases to answer questions beyond their system prompt. *** ## Web Integrations ### Web Integration Configuration for embedding agents in websites. Includes allowed origins, enabled features (voice/chat), and widget appearance settings. ### Widget Embeddable UI component for your website. Provides voice or chat interaction with your agent directly in the browser. ### WebSocket Real-time communication protocol used for web voice calls and chat. Enables bidirectional streaming of audio and messages. ### Access Token Short-lived credential for authenticating WebSocket connections. Generated via API and passed to the widget for secure access. *** ## Monitoring ### Activity Logs System events tracked for debugging and auditing. Includes call events, tool executions, errors, and warnings. Searchable by event type, severity, agent, and date range. *** ## Events & Notifications ### StartWebHookPayload Webhook sent when a call begins. Can include custom data from the caller. ### CompletedWebHookPayload Webhook sent when a call ends. Contains transcript, call duration, and result data. ### ToolWebHookPayload Webhook requesting tool execution. Your server performs the action and returns the result. *** ## Performance ### Latency Time between user speech and agent response. Target is under 2 seconds for natural conversation. ### Concurrency Number of simultaneous active calls. Limited by account tier. ### Rate Limiting API request limits to prevent abuse. Tracked per endpoint with retry guidance. *** ## Account ### Organization Top-level account container. Holds all agents, integrations, and team members. ### API Key Authentication credential for API access. Starts with `bb_`. Keep secret and never expose in client-side code. *** ## Related Detailed explanation of building blocks Create your first agent