Download the remote files app to your ios device (its free). Enable the access from wan on your time capsule, setup a dyndns account and get it setup to update your IP address automatically and then setup the remote files app on your ios device. I'd definitely set your time capsule to use accounts as the login method to provide some security.

Time Capsule over the internet | MacRumors Forums Dec 09, 2013 How to Setup An Airport Time Capsule - YouTube Oct 28, 2016 Time Capsule Bridge Setup for 2 wireless networks Aug 23, 2008 Time Capsule file server access outside LAN. | MacRumors

I need to port forward a Wake-on-LAN magic packet from the Internet, through my Airport Time Capsule to the broadcast IP of my private local network. The broadcast address is 10.0.1.255, but Wake-on-LAN won't let me enter 255.

Feb 15, 2018 Using Apple Time Capsule on ResNet : TechWeb : Boston 2. Connect the Time Capsule device. The way in which you connect your Time Capsule is critically important. Please follow these instructions closely. First, unplug your computer from the Ethernet wall jack in your room and, instead, connect the Time Capsule’s WAN port …

How-To: Access Your Time Capsule Over the Internet – Gigaom

Learn how to use AirPort Express, AirPort Extreme, and AirPort Time Capsule. Find all the topics, resources, and contact options you need for AirPort. Apple Time Capsule Accounts Nov 30, 2012