| CONTACT | STARTED | LENGTH | |
|---|---|---|---|
| OUT | Ostrow | 10:15 A.M. | 6 min 48 s |
| IN | Ostrow | 10:31 A.M. | 4 min 5 s |
A call log shows two calls with the same client on one morning. The first call began at 10:15 A.M. and lasted 6 minutes 48 seconds. The second call began at 10:31 A.M.
How many seconds passed between the end of the first call and the start of the second call?