Modifying Communications Command for Existing Toolbar Button
If you created a command in the communications configuration and you want a communications toolbar button to invoke this communications command instead of an existing command, then rename your commands so that the new command uses the name of the command that is currently associated with the toolbar button.
Renaming commands in the communications configuration has less impact on an upgrade effort than modifying object definitions in Siebel Tools.
Renaming commands in the communications configuration can be used whether you are only implementing a custom command or you are both implementing a custom command and invoking a device command supported by a custom communications driver, as described in Modifying Device Command for Existing Toolbar Button.
For more information about communications commands, see Commands.