# Introduction
`RNG` is a command introduced with [MSNP2](../versions/msnp2.md).

It is a Notification Server command, without a response payload.

Used to invite ("ring") you to a Switchboard session.

# Client/Request
This command can not be sent from the client.

# Server/Response
`RNG session-id address:port CKI cookie inviter-handle inviter-friendly-name`

Where `session-id` is the Switchboard session identification number you need in [ANS](ans.md).

Where `address:port` is the server you need to connect to join the conversation.

Where `CKI` is always `CKI`.

Where `cookie` is the Switchboard cookie, to be used in USR and [ANS](ans.md).

Where `inviter-handle` is the inviter's handle.

Where `inviter-handle` is the inviter's friendly name.

# Examples

## Getting a Switchboard invite
```
S: RNG 987654331 10.0.1.200:1865 CKI 123456789.123456789.123456789 anotheruser@hotmail.com another%20user
```

## Invalid context
*Inherited from being an unimplemented command.*
```
C: RNG 1
```

Server disconnects client.

# Known changes
None.