# Shut down functions

Use the following functions to stop a call or session in the H.324M Middleware:

Function | Description
h324CloseChannel | Closes an existing media channel.
h324Delete | Releases any objects and memory associated with an instance of the H.324M Middleware.
h324EndSession | Directs the H.324M Middleware to terminate the current H.324 session at the end of the call.
h324Stop | Stops the H.324M Middleware for the specified MUX endpoint.