> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-rn-guide-message-privately.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Calling

> Calling — CometChat documentation.

Calling is a core feature of CometChat. CometChat allows two mechanisms for calling

1. **Direct Calling**
2. **Default Calling**

## Direct Calling

Direct Calling allows you to start the call/conference sessions directly with the session Id of your choice. All the users joining the same session Id are connected to the same call/conference. For more information on Direct Calling, please visit the [Direct Calling docs](/sdk/javascript/3.0/calling-direct-calling).

## Default Calling

The second approach that CometChat allows is to implement the entire calling flow where one user initiates a call/conference and other user/users who want to be a part of the call accept/reject the call. All the users that accept the call are connected to the same session. For more information on Default Calling, please visit the [Default Calling docs](/sdk/javascript/3.0/calling-default-calling).