Does the standard search functionality for Communication channel fulfill all your queries/requirements when someone asks you the details? If no, I am sure you have properly updated documentation that saves you in such cases. And what if you don't have any documentation? The only way left seems is to open each and every channel to look out for the exact details. Don't worry. You don't need to do that anymore. We have a shortcut ;)
For details, please check http://scn.sap.com/community/pi...