The duration of Call for Help is 3600.0 seconds.
There does not appear to be a way to check the outgoing call duration on the iPhone 5, but there are apps you can download that may help you keep track. You can also check your current usage online to find out the call duration.
The duration of Your Call is 3120.0 seconds.
The duration of His Call is 1.03 hours.
The duration of The Call of the Savage is 3.85 hours.
The duration of Call of the Cuckoo is 1020.0 seconds.
The duration of Call Out the Marines is 1.12 hours.
The duration of Call the Mesquiteers is 3300.0 seconds.
The duration of Call It Courage is 2820.0 seconds.
The duration of They Call Me Renegade is 1.53 hours.
The duration of Call of the Toad is 1.63 hours.
The duration of They Call Me Bruce? is 1.45 hours.
The duration of Call Red is 3600.0 seconds.