# Introduction `QNG` is a command introduced with [MSNP2](../versions/msnp2.md). It is a Notification Server command, without either a request or response payload. It is the server's response to the [PNG](png.md) command. # Client/Request This command can not be sent from the client. # Server/Response `QNG {next-seconds}` Where `next-seconds` is the amount of seconds until the client should send another [PNG](png.md). Added since [MSNP9](../versions/msnp9.md). # Examples ## Server reply, without next seconds parameter *Only in [MSNP2](../versions/msnp2.md) to [MSNP8](../versions/msnp8.md).* ``` C: PNG S: QNG ``` ## Server reply, with next seconds parameter *Since [MSNP9](../versions/msnp9.md).* ``` C: PNG S: QNG 50 ``` ## Invalid context *Inherited from being an unimplemented command.* ``` C: QNG ``` Server disconnects client. # Known changes * [MSNP9](../versions/msnp9.md): Added a next seconds parameter (parameter 1).