# How can External Users Interact and Respond to OrgChat

OrgChat gives the capabilities to include external users in the conversation and they can respond to the messages on public or private channel as long as they have the channel number. The messages send thru external users on the channel are available for all the users on that chat channel.

* Locate the channel number as indicated at the top of the channel bar

![](/files/-M9cL2eEumeah0yaJkgc)

* This number can be used to send SMS and/or Fax which will be received on this channel as a message.

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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.orgchat.com/how-can-external-users-interact-and-respond-to-orgchat.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.