> ## Documentation Index > Fetch the complete documentation index at: https://docs.decisional.com/llms.txt > Use this file to discover all available pages before exploring further. # Using Dex > Start work, ask questions, run agents, and review approvals from the web app, Slack, email, or mobile Dex is Decisional's conversational operator. Use it to ask questions about agents and runs, start one-off work, run agents, view agent details, and review approvals across the tools and context your workspace has authorized. ## How Dex Runs Each organization's Dex runs on its own dedicated orchestrator computer (VM). This long-running computer receives requests, keeps channel connections available, and carries out work using the tools and context your organization has authorized. Open **Settings → Organization** to see whether the computer is running. Organization owners and admins can open, stop, start, or delete it. They can also choose the model and runtime settings. Some settings changes briefly restart the computer while the new configuration is applied. Organization settings showing a running Dex orchestrator and channel options for Slack, SMS or iMessage, email, and Telegram ## What You Can Ask For Ask about an agent, source, run, file, approval, or output without opening every underlying screen. Use an agent's available context and connected tools for work that does not need a reusable workflow. Summarize what happened, identify the step that broke, and surface the relevant logs, files, or outputs. Start an agent, check its details, or review recent runs without opening every underlying screen. ## Channels Dex can meet you where the work starts. You can connect several channels at the same time, such as Slack and email for the organization and SMS or iMessage for your own account. Requests from every connected channel are routed to the same organization Dex. Start new work, inspect runs, review files, and open the Decisional web app when configuration needs to change. Chat with Dex from team conversations, ask for updates, and keep work moving without leaving the thread where the request started. Send requests, receive summaries, and handle asynchronous follow-ups through email when a workflow needs a written trail. Text Dex from your phone through a personal connection. You can optionally route that number to a specific agent. Connect a Telegram bot so people can talk to the organization Dex from Telegram. Connect Dex to supported chats, spaces, or channels used by your team. Configure these connections in **Settings → Organization → Channels**. Expand a channel to connect it or review its setup. ### How channel scope works The scope label tells you who uses the connection: * **Org-wide** connections are shared by everyone in the organization. Slack, email, Telegram, Google Chat, and Microsoft Teams use this scope. * **Personal** connections belong only to the signed-in account. SMS or iMessage uses this scope, and each account can connect one number. The Settings tabs use the same idea: * **Account** contains settings that affect only you, such as your profile and notifications. * **Workspace** contains settings for the workspace selected in the top-left menu, such as members, access, and workspace keys. * **Organization** contains settings shared across the organization, including the dedicated Dex computer, model and runtime, channels, and audit log. The selected workspace determines your current context and whether you have permission to manage the organization. It does not create a separate Dex computer for every workspace: the dedicated computer belongs to the organization.