Will my iPhone ring once Lost Mode is deactivated? Lost my phone, activated Lost Mode not long after. Wondering if I'm able to take my phone off Lost Mode from iCloud, call it and hopefully it rings? I think I lost it down an embankment.
Normally if a device is in Lost Mode, you can just play a sound using Find My iPhone directly. Choose the Play Sound option which will play a sound on the device for 2 minutes at full volume overriding silent.

If you still wish to call the device, you can disable Lost Mode and make the phone call normally.