Can I run multiple app in iphone simultaneously

I want to run two app simultaneously, I am using jailbroken phone and dont want to upload that app to the app store.

Is there any way so that I can log phone call time, this can only be done if my "logging app" is running in background.

Please suggest me, how can I do this on jailbroken phone.

Some thing like:http://msdn.microsoft.com/en-us/library/ms884959.aspx (its for windows开发者_如何学Python)

Is this actually a programming question, or are you asking for an app that logs call times?

Assuming the former, you would write a iPhone program that hooks into current phone conversations some way (private APIs? Not sure if this is indeed possible, just assuming.) You would then run your app via Backgrounder or some other wrapper that provided an interface for multiple applications to run at the same time. This usually comes at the cost of increase battery life, depending on how much CPU (and maybe memory?) the backgrounded app consumes.

Backgrounder is available via Cydia, I believe.

Need to include CoreTelephony, will solve the issue